The second years are assigned a dance project. Ben invites Kat to join his and Sammy's flash mob to impress her. Tara finds a picture of Christian and his mother on his bulletin board and unfolds it to reveal Christian's father. Tara questions him about his father but Christian refuses to talk about it. Grace makes things awkward between Abigail and Ethan when she says they obviously are dating each other, making Abigail tense and amusing Ethan. Tara and Christian, criticized by Miss Raine for skipping class, make their dance project a duet but still join Ben and Sammy's flash mob. Grace and Abigail also participate in the flash mob with Ethan as the cameraman. Sammy informs Ben that their planned flash mob show on the ferry is not possible due to the workers being on strike; Ben then decides to hold it on the train. Afterwards, Grace makes it known to Ethan that she in fact likes him before kissing him in sight of Abigail. This crosses into Tara and Christian's argument over Tara researching his father's whereabouts. In anger, Christian breaks up with Tara.