Ted and Marshall sneak in the back, and find Barney dressed as a turtle mascot. Marshall asks the senior who's Lily's date for the night where she is, who then pulls out a pair of Nunchaku and hits Marshall with them. Ted then tackles the senior to show Marshall that he will always have his back in a fight. The two seniors, Marshall, Ted, and Barney are taken outside for trespassing, but Marshall and Ted sneak back in when Barney grabs the head of the turtle mascot suit and runs off. Marshall and Lily dance together, and agree to have "The 88" play at the wedding, while Ted dances with Robin, who now wants to try restoring their relationship.