when does alison come back into pretty little liars

Six years ago, after Elena was pushed into the sea, she was saved by the Dragon King, Yale, had a one-night stand with him, and gave birth to a pair of twins. One of the twins, Tina, was raised by Elena, and the other one, Minnie, was taken away by Yale. Six years later, Elena started to look for Tina's father to treat Tina's disease. After all the misunderstandings due to Tina and Minnie's identical looks, Yale and Elena finally uncovered the truth and confessed their love to each other...

Escaping from a pervert trying to buy her virginity, Julia kisses a stranger—Stephen, a billionaire who’s allergic to women. Years after their one-night stand, Julia returns with his child. But what she doesn’t know is that Stephen has been searching for them all along: the only woman he isn’t allergic to...and his child.

Eight years after a one-night stand, Sophie Archer raises son Jack alone until he's diagnosed with leukemia requiring a rare blood-type donor. Doctors suggest a million-dollar imported medicine to buy time. While struggling financially, Sophie becomes Caleb Johnson's secretary, unaware he's Jack's father. Meanwhile, Caleb and his grandmother Kate meet Jack by chance and confirm paternity through DNA testing. As Sophie and Caleb develop feelings and she becomes pregnant again after another encounter, Sophie saves enough for Jack's treatment, only for rival Chloe Bradford to destroy the medicine. Kate intervenes, recognizes Sophie and Jack as family, and tells Caleb to marry Jack's mother, not realizing he's already falling for Sophie. When Caleb discovers Sophie is Jack's mother, they commit to each other. At their wedding, Sophie reveals she has no blood relation to the Archers, and learns she's actually the biological daughter of the Bradfords couple, whom she refuses to forgive. The story ends with Sophie giving birth to twins and living happily with Caleb, Jack, Kate and their growing family.

The mysterious secret agent Peter Rogers was awarded the National Medal of Honor by the President and had retired from the military. While dining out with his daughter Leslie, Peter is mistaken for a blind date by the beautiful CEO Sydney Greenfield, and the two unexpectedly get married. When his classmate and ex-girlfriend, who were unaware of Peter's true identity, encountered him again, they subjected him to various insults and ridicule. Upon hearing about this, Sydney publicly revealed that Peter was her husband, putting everyone to shame.

Eight years ago, Anna Lane, a D-list actress, married Caleb Scott, CEO of Scott Group, to fulfill her grandfather's wish. After unexpectedly becoming pregnant, she filed for divorce. Six years later, the Scott family discovers that her daughter, Nancy, is actually Caleb's child and begins searching for them.While Anna faces mistreatment on a film set, Caleb arrives to rescue them but doesn't recognize his daughter. At a banquet, Caleb's mother reveals Nancy's identity, and the truth comes out: Anna is Caleb's ex-wife. Caleb confesses his love, and they remarry, welcoming twins and achieving both love and career success.

Claire’s one-night with billionaire Ethan leads to twins—but her scheming stepsister steals her daughter. Six years later, she returns with her son, crossing paths with her lost child—and the man she never forgot. To find her again, Ethan hides his identity… even letting her believe he’s just a gigolo, all to stay close and win her back.

Theia Quill and Glen Webley shared a night together, unaware that it would result in the birth of twins, Caspian and Celeste. Years later, Caspian discovers that Glen Webley, the CEO of Webley Group, is his and Celeste’s biological father. Determined to find out the truth, Caspian, along with Celeste and their mother, confronts Glen.

After losing his mother to cancer, Yale Mond falls into deep despair. Soon after, his girlfriend Lillian Jones is diagnosed with leukemia. Not wanting Yale to endure another heartbreak, Lillian hides her illness and ends their relationship.Devastated, Yale goes abroad to study medicine.Five years later, he returns as the director of a hospital, bringing with him a miracle cancer drug.Unbeknownst to him, Lillian’s leukemia has worsened after she secretly gave birth to their daughter Annie. Unable to afford treatment, she ends up living under a bridge. Through Annie, Yale finally finds Lillian, and the long-standing misunderstanding between them is resolved. Using the miracle cancer drug, Yale saves the dying Lillian, and the family of three is finally reunited.

Single mother Eleanor returns to L.A. with her twins, desperate to fund her daughter's medical care. She's blindsided by a reunion with her first love, Theodore, now a billionaire. Broke and burdened, Eleanor faces a cruel choice: reveal her past lie for her daughter's treatment, or keep the truth hidden and risk everything.

After losing his mother to cancer, Yale Mond falls into deep despair. Soon after, his girlfriend Lillian Jones is diagnosed with leukemia. Not wanting Yale to endure another heartbreak, Lillian hides her illness and ends their relationship.Devastated, Yale goes abroad to study medicine.Five years later, he returns as the director of a hospital, bringing with him a miracle cancer drug.Unbeknownst to him, Lillian’s leukemia has worsened after she secretly gave birth to their daughter Annie. Unable to afford treatment, she ends up living under a bridge. Through Annie, Yale finally finds Lillian, and the long-standing misunderstanding between them is resolved. Using the miracle cancer drug, Yale saves the dying Lillian, and the family of three is finally reunited.

Cute Kids to the RESCUE! Adorable Twins find perfect Mom for their Billionaire CEO dad to marry in a whim, only to find she’s their long lost biological mom!

Natalie had it all—engaged to football star Karl and carrying his child—until tragedy struck. Her brother caused Karl's sister's death, and Karl's injuries ended his career. Yet, she vanished for seven years. Now, Karl sees her with a "husband" and "daughter," seemingly happy. But he won't let her go.

After a one-night stand with Hank Frazer, Sibyl Bealor became pregnant and gave birth to twins. Her cousin Elina bribed the doctor to tell Sibyl that one twin didn't survive, but secretly gave the baby to Hank's stepmother, Yildiz Sue. Years later, Sibyl, raising her son Shane, met Hank, who is raising his son Yuri, on a blind date. Due to a mix-up, they took home the wrong child. What a tangled web! Let's see what happens next!

My mate fell in love with the mute Omega who saved his life and wanted to call off our engagement. I kindly advised him, "The position of Alpha Queen is not an easy one. She may not be able to bear the responsibility." The mute Omega felt insulted and committed suicide by taking Wolfsbane. Eight years later, when Ryan became the Alpha King, the first thing he did was destroy the Snowfang Pack and come for my life. "This is what all of you owe Saya." When I opened my eyes again, I was back at my 18th birthday banquet. Ryan's father, the former Alpha King, had once asked me what my wish was. "Since Ryan and Saya are each other's fated ones, let them be together. Let them complete their bond under the moonlight and receive the blessing of the Moon Goddess."

My mate fell in love with the mute Omega who saved his life and wanted to call off our engagement. I kindly advised him, "The position of Alpha Queen is not an easy one. She may not be able to bear the responsibility." The mute Omega felt insulted and committed suicide by taking Wolfsbane. Eight years later, when Ryan became the Alpha King, the first thing he did was destroy the Snowfang Pack and come for my life. "This is what all of you owe Saya." When I opened my eyes again, I was back at my 18th birthday banquet. Ryan's father, the former Alpha King, had once asked me what my wish was. "Since Ryan and Saya are each other's fated ones, let them be together. Let them complete their bond under the moonlight and receive the blessing of the Moon Goddess.

Anna Poole had faced hardships since childhood. While trying to resolve a company crisis with her good friend, Serene Cox, Anna was drugged and sold to Mr. King. After Anna injured Mr. King and escaped, she ended up in the room of another man, Zach Howl, who was also under the influence of an aphrodisiac. As a result, they unexpectedly became intimate. As soon as Anna regained consciousness, she decided to confront Serene and accidentally overheard a conspiracy between Serene and the supposedly deceased Bryan Lane. Outraged, Anna confronted Serene, who injured her and caused a fire to start. In a life-threatening situation, Anna was saved by Waver Taylor, who had just returned to the country. Ten months later, she gave birth to twins, and one of them was taken away by the Browns. Along with a doctor, the Brown mother and daughter falsely claimed that the child died to suffocation.

Lila needs money to save an orphanage，so she hastily marries William, thinking he’s just a poor guy. But after falling for him, she discovers he’s actually the city’s richest CEO......problem is, she hates liars more than anyone else.

To honor a thousand-year promise, Serena Turner sent a puppet to bear the pain inflicted by her reborn lover, Nigel Dalton. Only when it breaks does he grasp the truth. By then, Serena has met her kindred spirit, Simon Clark, and the three are caught in a whirlwind of emotions. After life-and-death trials, she chooses to start over—only to uncover Simon’s love that spans lifetimes.