Amy returns from maternity leave. Jake and Rosa work a difficult case.

The squad takes up Holt on an offer for a weekend getaway.

Jake and Amy create a system to balance work and childcare and Rosa gets a new houseguest.

Jake takes an old friend for a ride.

When the FBI takes over a high-profile case, Jake keeps digging. Amy and Rosa negotiate with O'Sullivan and the police union.

Jake and Terry accompany Charles to the funeral of his Great Uncle Pappy — and uncover a family secret. Rosa nudges Holt back into the dating pool.

Amid planning for a vow renewal ceremony, Holt makes a big announcement — one that he asks Jake not to share with Amy. Plus, Cheddar wears a bow tie!

The squad takes stock of its eight years together and looks toward the future.