Just as the happy-go-lucky Suki (Ivana Wong) thinks she is headed to the altar with long-time boyfriend Chico (Edmond Leung), she learns of his affair with business partner Kiki (Jacky Cai). Suki’s simple world crumbles in an instant. Despite being loveless, joyless and jobless, Suki holds out hope. She works hard and achieves her dream of becoming a bus driver. Even though she has zero experience, Suki is fortunate to work alongside a group of supportive drivers, who encourage her to move past the pain and start over. One year later, Suki receives a wedding invitation from Chico. She attends the wedding banquet as a final goodbye to her ex-boyfriend.
On the night of the banquet, Kiki's ex-boyfriend Manny (Philip Keung) plans to sabotage the wedding by broadcasting evidence that Kiki is a swindler and cheater, but Suki accidentally foils his plan. Manny uses every trick up his sleeves to get Suki to join his "Avengers Alliance." What will Suki do? Will she take the opportunity to take revenge and turn her life around?