The series begins on a snowy Toronto night when slacker bassist Scott Pilgrim falls instantly in love with enigmatic delivery girl Ramona Flowers. Scott quickly learns that to date Ramona, he must defeat her League of Seven Evil Exes in martial arts battles. However, during his first duel against the charismatic movie star Matthew Patel, the unthinkable happens: Scott is seemingly obliterated into a shower of golden coins.Devastated, Ramona refuses to accept his death and begins investigating his disappearance. Meanwhile, Scott’s roommates, bandmates, and ex-girlfriends struggle to cope with the tragedy. Ramona discovers that Scott’s body was never found, leading her to suspect he was not actually destroyed, but rather kidnapped or transported elsewhere. As she tracks down the evil exes—ranging from skateboarder Lucas Lee to pop star Gideon Graves—she realizes they are just as clueless about Scott's whereabouts as she is. Ramona is forced to confront her
past mistakes, unresolved emotional baggage, and the reasons her previous relationships crumbled, transforming her from a passive object of affection into an active detective determined to uncover the truth.As the mystery deepens, it is revealed that Scott is not dead at all. Instead, an older, cynical, time-traveling version of Scott from the future has kidnapped his younger self to prevent them from ever meeting Ramona, believing their relationship is ultimately doomed to cause lifelong misery and heartbreak. Future Scott has taken over the production of a Hollywood movie based on their lives, casting Ramona and the evil exes as actors to keep them under his control and rewrite their shared history.When present-day Ramona finally breaches the production, she confronts Future Scott, sparking a massive
confrontation involving the entire ensemble cast, including Scott's friends and the reformed evil exes. Younger Scott breaks free from his older self's manipulation, realizing that the pain and hardships of love are entirely worth experiencing. Future Scott eventually accepts that he cannot dictate the flow of time or forcefully engineer happiness, finally letting go of his bitterness and regret. With the timeline restored and the cinematic deception dismantled, Scott and Ramona are finally reunited. They return to their normal lives in Toronto, deciding to approach their relationship with a newfound maturity, honesty, and mutual respect, ready to face whatever future challenges await them together.