At the beach house, Charlie’s twenty-five-year-old daughter arrived, carrying a quiet hope of forging a connection with the family she barely knew.

Jenny takes up residence with Evelyn and her affluent companion, Marty (played by Carl Reiner).

When Berta sustains a back injury at work, Walden and Alan consider it a possible signal for her to retire. Their suggestion, however, provokes offense, and the discussion escalates until she resigns. Subsequently, Walden and Alan attempt a…

Alan and Lyndsey's secret affair begins to unravel when one of Lyndsey’s friends, the ever-charming Stephanie (Jennifer Aspen), inquires whether they have reconciled. They both vehemently deny any rekindled romance. Yet, Lyndsey insists Ala…

Alan seeks to understand the influence of Lyndsey’s boyfriend upon her. Meanwhile, Walden offers assistance to Jenny as she navigates the challenges of her burgeoning acting career.

Alan's eyes lit up when he discovered Walden's acquaintance with Lynda Carter. He immediately requested an introduction, hoping for a romantic encounter. Walden, despite a nagging sense of unease, conceded to inviting her over for dinner.

Walden and Alan were enjoying dates with two women who seemed perfectly suited to them, until Lyndsey’s jealousy unexpectedly disrupted their pleasant evenings.

The clandestine relationship between Alan and Lyndsey casts a shadow over Walden's position, compelling him to seek Rose's assistance.

Walden found himself on a date with a model whose grace seemed perpetually threatened by misfortune. During their evening together, Alan discovered that his companion offered unexpected glimpses into her own life.

A gift of Japanese delicacies arrived for Alan from Jake, and with it, a sudden surge of festive, yet oddly dubious, Christmas carols filled the house.

Walden finds himself collaborating with his captivating former employee on an ambitious new undertaking. Separately, Alan cautions Jenny that she must share her feelings with her girlfriend, lest she jeopardize their relationship.

Lyndsey’s boyfriend arranged a date for Alan. Meanwhile, Walden hoped to assist Nicole with her project, believing it would free up her time for him.

Marty Pepper (Carl Reiner) asks Evelyn for her hand in marriage. Meanwhile, Alan and Walden begin making arrangements for Marty's bachelor party.

Alan learned that Lyndsey had ended her relationship with Larry without a word to him. Meanwhile, Walden made a concerted effort to project an image of masculine confidence.

Alan presented Lyndsey with a stark choice: him or Larry. Meanwhile, Jenny found herself increasingly troubled by a growing distance between herself and Brooke.

Walden suspects infidelity in his girlfriend; meanwhile, Alan embarks on a relationship with Gretchen, Larry’s sister.

Lyndsey learns of Alan's connection to Gretchen, while Walden struggles to advise Barry to seek independence.

A summons arrived for Walden, an invitation to the opening of his former love's shop. Simultaneously, Gretchen harbored a desire for increased visits to Alan's residence – or, as he was more commonly known, Jeff Strongman's.

The reunion with Kate solidified in Walden's mind the conviction that she was his destined partner—a feeling that lingered, potent and undeniable, until he encounters Vivian, a woman played by Mila Kunis.

Alan discovers a chance for financial gain, while Walden confronts the complexities of his codependency.

Gretchen, Alan’s companion, presses him to reveal his true nature to Larry. Separately, Walden embarks on a journey with Jenny and Barry, their destination a glimpse of his first automobile.

Having disclosed his true identity to Larry, Alan now faces the inevitable repercussions.