Michael arranges an important meeting and Janet makes a reconnection.

With Eleanor assuming the role of the architect, the group adapts to the challenges facing them when four test subjects inhabit a new neighborhood under their supervision.

Leonard is caught between a rock and a hard place when he’s responsible for distributing extra grant money. Bernadette turns the backyard playhouse into a hideaway from Howard and the…

Eleanor, Chidi, Tahani, Janet, and Jason head to a destination that may have lasting implications.

Michael receives a surprise visitor. Meanwhile, Eleanor, Chidi, Tahani and Jason attempt to solve a riddle.

Michael continues to work out the kinks in his grand plan. Meanwhile, Eleanor stumbles across a secret.

With the help of Chidi and Tahani, Michael faces his biggest challenge yet. Meanwhile, Eleanor, Jianyu and Janet are faced with a monumental decision.

Leslie and Ben come under fire for participating in an old Pawnee tradition. April and Ron go on a scavenger hunt. Donna and Garry stroll down memory lane.