Ruth's dad gets out of jail. Approval for a riverboat casino calls for Wendy's political skills. The Mexican cartel demands reparations from the Snells.

When a mobster jeopardizes the casino bill, Marty enlists Buddy's help. Wendy resorts to dirty tactics to get votes. Cade reminds Ruth of her roots.

Wendy does damage control when Wilkes's pressure on Sen. Blake backfires. Rachel is sent on a mission. Ruth resists accepting her Langmore destiny.

The FBI sends out a second lure. Charlotte slips up while chatting with Wyatt. The Byrdes grow wary of Rachel, who deflects suspicion onto someone else.

Agent Petty's revelation tests the loyalties of Marty, Ruth and the cartel. Despite the FBI closing in, the Snells refuse to destroy their poppies.

An FBI search of the Snells' field yields a surprise. Playing hardball, Agent Petty questions Wilkes. The Byrdes mourn a loss.

Mason goes off the deep end and focuses his rage on the Byrdes. Ruth tries to make her dad proud during a boat-part heist.

Darlene makes one too many rash moves. Marty tries to free Rachel from Agent Petty's grasp. Jonah helps his mom force Wilkes to continue his support.

Marty is pressured to move money ahead of schedule, Wendy pitches a high-stakes plan, Wyatt lives the good life, and Ruth butts heads in the casino.

Wendy asks Helen - not Marty - to help close a deal, the Byrdes get a new houseguest, and business goes boom aboard a rival casino.

The FBI dives into the casino's finances, Wendy's dreams take a dark turn, and Marty worries that the writing may be on the wall.

As Wendy, Helen and Ruth strive to keep the business humming, Navarro plays mind games with Marty, who worries he'll never see his family again.

Maya steps up her bid to turn Marty, whose eerily calm demeanor has Wendy worried. The Byrdes buy a horse farm on behalf of Navarro.

Marty and Wendy tell each other how they really feel, Ruth confronts Wyatt, Darlene lets her ambitions be known, and Ben's past comes into focus.

The FBI questions Ruth, tensions between Cosgrove and Marty hit a new high, Sue takes on a new patient, and Wendy recruits for her foundation.

Ruth isn't happy about Marty and Wendy's plan to bury the hatchet with Frank Jr. The Byrdes make a difficult decision about Ben. Maya is reprimanded.

Marty and Wendy wrestle with a problematic offer. Ruth goes out on her own, Jonah rebels, and Omar's nephew makes his presence known.

Maya pushes back on Marty's plan for Omar. Ruth pursues the hipster heroin market. Wendy tries to raise $150 million. The new sheriff causes problems.

Maya and Omar meet face-to-face. Wendy has a contentious business meeting. Ruth goes behind Darlene's back. Jonah finds a new place to set up shop.

Wendy's claims about Ben anger Ruth. Mel the P.I. tracks down Wendy's father. Ruth's trip to the Missouri Belle with Kerry doesn't go as planned.

The Senator extends an olive branch — with a twist. Ruth and Marty scramble to rebuy the drugs Darlene sold. Charlotte ponders life after high school.

Marty is tasked with proving Omar wasn't involved with a bombing. Wendy pays a visit to the Lazy-O Motel. Ruth and Wyatt make a plan.

The FBI's long-awaited meeting with Omar takes place. Wyatt shares some news with Ruth. Feeling betrayed, Javi gets aggressive.

Devastated by a tremendous loss, Ruth heads to Chicago to enact revenge as Marty tries to talk her out of doing something she may regret.