The Briggs-Bello alliance is tested due to an ultimatum. Mike must push his limits for the good of the case.

Jangles takes a Graceland member hostage. The housemates unite to save one of their own.

Bello's last strike initiates a war that Graceland must stop. Charlie meets an unusual ally. Briggs faces the past.

Mike gets deeper into Bello's organization. Briggs and Charlie resume former identities.

Mike convinces Bello to steal from a drug cartel. Briggs helps Charlie cover up bad decisions.

Charlie decides to tell the house about her bust. Briggs must come clean. Mike believes his investigation is ending.

Charlie learns a secret about Briggs and works with a Federale. Mike finds out that Juan is missing.

Briggs and Mike search for the truth about Juan's disappearance. Briggs makes a decision about his future.

Briggs and Mike tilt rival gangs against each other. Mike learns that undercover life has moral complications.

Mike is recruited by a Nigerian drug lord to teach gang members how to shoot. Paige gets Jakes and Tuturro to go undercover with a marijuana farmer.

Briggs helps Lauren with her case against the Russian Mafia. Charlie's C.I. proves unreliable during a drug deal.

An undercover FBI agent learns his job requires more than criminal investigations.