Jeff helps Duncan romance Britta; Britta runs into some old anarchist friends and discovers they’ve moved on; Abed accidentally destroys some of Hickey’s drawings; Chang has a supernatural experience.

Sheldon’s latest scientific breakthrough leaves him feeling like a fraud; a romantic gesture between Howard and Bernadette causes Penny to up her game with Leonard.

Sheldon’s latest scientific breakthrough leaves him feeling like a fraud; a romantic gesture between Howard and Bernadette causes Penny to up her game with Leonard.