Cameron loves his mom, so Mitchell isn't quite sure how to tell Cam that she makes him a little uncomfortable. Meanwhile, when Haley finally breaks up with Dylan, Phil takes it harder than anyone else, and Jay's little stomach ache gets exacerbated when he and Manny start looking things up on a medical website.
Desperate for rehearsal space, Jess brings her youth hand-bell quartet to the flat to practise and things take an interesting turn when Winston reveals hidden musical talents and agrees to help out with the group. Meanwhile, Nick and Schmidt become embroiled in an increasingly heated dispute over DIY.