The entire squad is on high alert when a massive blackout hits Brooklyn. Later at the hospital, Jake and Amy are happy to introduce their friends to their newborn son, McClane `Mac' Peralta.

Holt asks for Jake's help in a case that is exceptionally meaningful to him. Charles and Terry work together on a side business.

The squad competes in an effort to determine who is the greatest human and genius. Later, Holt claims that he's the winner and then the squad proceeds to argue about who really won each Heist.

Jake and his father deal with unsettled family business. Amy and Rosa work a high-profile case. Terry wants to join the NYPD band.

When a prank goes disastrously wrong, things at the Nine-Nine take a distinctly Agatha Christie turn.

Jake and his father deal with unsettled family business; Amy and Rosa work a high-profile case; Terry wants to join the NYPD band.

Captain Holt deals with a personal loss. Jake must decide whether to take Terry or Charles to an exclusive event.

Jake and Amy work an uncrackable case while Holt adjusts to a new beat. Hitchcock looks for the love of his life.

When cocaine and weapons are stolen from the evidence lock-up, the squad must investigate the Nine-Nine itself.

The team are hit with a dose of competitive juices as Jake and the squad compete in the second Jimmy Jab Games.