Ethan helps Clea with her case before double-crossing her. Patrick catches up with Sadie. Clea figures out the identity of the mystery man killed at the warehouse. Ethan, Mia and Marty join forces for one final deal.

Harper finds out Mia's true identity and tries to leverage this to make her turn on Marty. Ethan must decide if he trusts Mia or Marty while the three pull a heist together. Marlon turns back to his old gang lifestyle.

Ethan goes into hiding after the bombing of the Federal building. The bookseller holds Clea captive. Theresa scrambles to tie up loose ends in her hunt for Ethan. Regan agrees to assist Ethan and Clea, but it's a step too far.

Ethan and Clea work together to discover who's behind the conspiracy. Ethan forces Theresa to reveal her hand. Clea follows a seemingly innocent bookseller. Ethan does Theresa's bidding to unexpected ends.

Grace is jailed after being arrested for murder; Mitch and Wilson discover they share common interests; Tom is among the witnesses questioned by Hernandez and Campbell; Alec meets with Jimmy's crew.

The truth behind Sam's death is revealed. Jimmy meets with the Chinese. Grace confronts Sam's killer. Campbell and Jimmy come to an agreement.

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Ethan, Marty, and Mia scramble to get enough money to keep the Russian mob off their back. Harper and Patrick's investigation leads them to Tilda's dead body and Marty. Marlon fights for his relationship with Zipporah.

Ethan tracks down Clea while getting dragged deeper into the world of Casey Oaks. Clea investigates Oaks' possible involvement in Maria's murder. Mia reconnects with an old accomplice. Patrick struggles to come to terms with Harper's death.

Ethan and Clea discover what happened to Regan. They race to find the accountant before he's taken out. As authorities close in on Ethan, he and Clea work to uncover a greater conspiracy.

Ethan and Mia learn who the assassin is; Marlon contemplates going straight; Marty battles public opinion; and Harper harasses Marty's clients while trying to dig up dirt on him.

Ethan discovers Tilda's plan to kill him, but gets the upper hand, interrogates her, and learns the truth. Marty forces a captured Mia to use the flash drive. Harper deals with the aftermath of the task force being shot up.

Ethan returns to San Francisco hoping for a fresh start. But when Ray's brother asks for help, Ethan gets involved. Mia needs Marty's help to get her off a murder charge. Clea catches a businessman's murder that takes her down a rabbit hole.

Ethan turns on Clea and Regan. Devastated by Phan's disappearance, Clea searches for clues. Patrick and Ethan investigate the hit-and-run in search for Mia's accomplices. Mia and Sadie are forced on the run.

Marty refuses to help Marlon, whose business is in jeopardy; Harper questions Patrick; Ethan decides what's next now that he's free; and Talia sets up Marlon.

Harper contains Patrick; Marlon is arrested for Talia's murder; Ethan makes a new deal with Marty, who learns that Marlon betrayed him; and Harper breaks the Hutchings' murder case wide open.

Ethan has to navigate a dirty cop. Having escaped from federal custody, Mia's on the hunt for Ethan. Meanwhile, Patrick's on Mia's trail. Clea investigates Maria's murder.

Ethan robs Oaks and faces the consequences. Mia and Sadie fight over how far they'll go for money. Clea tries to protect one of the young trafficked girls. Patrick finally catches up with Ethan.

Ethan reveals to Grace they borrowed money from the wrong men. Ray realizes something is wrong with Spud. Ethan, suspicious, digs into Grace's background. Grace tries to help Billy but it backfires. Spud and Ray have a heart-to-heart talk.

Ethan and Ray are forced to figure out what to do about Spud. Leni and Grace speculate about the money Ethan has given away. Ethan tracks Grace. Billy tries to win Evie back. Evie confronts Grace. Grace finds a new clue in the search for Sarah.

Ethan and Ray fall out. Grace says sorry to Evie. Leni and Grace find out the original source of Ethan's money. Sarah and Grace work together to track Ethan and Ray.

Harper is hit hard by Lobo's death; Ethan tells Marty the real reason he's in Chicago; Talia causes problems for Marlon; Grace and Ethan spy on Marty and the General; and Grace follows a dangerous lead.

Ethan queries why Marty wants Mia dead, but the investigation is halted when Jen is kidnapped. Harper looks for a missing Patrick. Marlon lies to Zipporah while continuing to help Ethan.

Sam's death is linked to Jimmy's crew; Jimmy delivers a scolding to Alec; Capt. Campbell seeks dirt on Jimmy; Max receives word of the missing money.

Grace must face the verdict of the internal affairs review board. Jimmy believes one of his sons is dead. Grace tries to comfort Jimmy. Grace's fingerprints are discovered on a gun.