When Ari has no recollection of his actions from the night before, Briggs, with the help of the other Graceland agents, helps him piece together the disturbing details.
The newly formed Briggs-Bello alliance is tested when members of the Caza Cartel head north with a deadly ultimatum. During the aftermath, Mike is forced to push his own limits for the good of the case.
Johnny needs to infiltrate Soto Street to prevent a gang war; Jakes and Charlie try to take over Germaine's business; Mike begins piecing together Briggs' plan.
In this season finale, the infamous Caza enforcer Jangles takes a member of Graceland hostage and the house must come together in order to save one of their own from a sadistic killer.
Mike must step up his operation when Jessica Foster arrives at Graceland to shut it down early, Johnny makes a bold move to get back in Solano's good graces, and Jakes' son arrives at his house.
Bello's last strike to the Caza Cartel sets a war in motion that Graceland now needs to stop. While on her hunt for Odin, Charlie meets an unusual ally and Briggs comes face to face with the past.
Paige gives herself up to the Solano cartel's sex slave operation, and Mike and Briggs are willing to sacrifice their ethics to question a detainee and get Paige back.
Someone calls Briggs and plays him the tape of him killing Badillo. He wonders who could it be. The team goes to hit the bank where Markham keeps his money.