Ray Donovan is a professional "fixer" who cleans up messes for wealthy and powerful clients in Los Angeles. He's trying to balance his dangerous career with his strained family life, including his wife Abby, who is dealing with a serious health issue, and his children. Ray's father, Mickey, is a constant source of trouble, always scheming for money.

The season's central conflict revolves around Ray's efforts to protect his family and clients from escalating threats, particularly from the Russian mob and corrupt law enforcement. Key turning points include Abby shooting and killing an assassin in their home, forcing the family into hiding. Ray also kills the dangerous Russian mob boss Belikov to ensure his family's safety. The season culminates with Ray facing federal charges after Sonia Kovitsky turns evidence against him, leading to a tense standoff where Ray manipulates both the mob and the FBI. Ultimately, Dimitri and Sonia are killed, and Ray hands over evidence to the FBI, seemingly resolving his immediate legal troubles.

Season 4 of Ray Donovan covers episodes 1-12. Here's everything that happened:

Season 4, Episode 1: Girl With Guitar - Ray is in recovery after the shootout, attending meetings and trying to reconnect with Bridget. Abby receives a breast cancer diagnosis. Mickey is in Nevada, scheming. Hector's cop encounter is resolved when Ray gets him drunk. Ray gives Bridget the "Girl With Guitar" painting. The episode concludes with Ray tearfully telling his family that he loves them.

Season 4, Episode 2: Marisol - Ray helps Hector silence his half-sister Marisol, who threatens to reveal their incestuous past. Ray gets her to make a statement on TV. Meanwhile, Ray manipulates evidence to free Mickey from Muncie's custody. Marisol escapes Ray by jumping from his moving car. Hector loses his fight.

Season 4, Episode 3: Little Bill Primm's Big Green Horseshoe - After an intruder breaks into the Donovan home, Abby shoots and kills Hot Dog, a Russian mob assassin. Ray moves his family to a motel for safety. Mickey schemes to steal $4 million from a casino. Ray finds Detective Muncie murdered. Ray offers to get Belikov out of prison to ensure his family's safety.

Season 4, Episode 4: Federal Boobie Inspector - Ray seeks leverage against the Russian mob by unearthing a secret from Ezra's past, involving a Hollywood power player. Abby confronts her fears about her health with Lena and her friend. Ray sings karaoke to get information from Cochran. Mickey tries to involve his sons in a casino heist. The episode concludes with Ray deciding to help Mickey rob the casino.

Season 4, Episode 5: Get Even Before Leavin' - Ray and Mickey travel to Primm to recover stolen casino money, facing Russian mob pressure. Mickey impulsively shoots and kills Pinky, who was threatening to burn the money. Mickey then plans to flee with Sylvie, but ultimately offers himself to the police for past crimes. The episode concludes with Mickey heading to the police, intending to clear the Donovan name.

Season 4, Episode 6: Fish and Bird - Ray grapples with Belikov's release and its implications. Sonia invites Ray to a breast cancer benefit. Ray is tasked with disposing of a body for Belikov, but instead, Ray kills Belikov. He ships Belikov's body back to Moscow in the crate meant for the girl. Mickey's confession leads to Belikov's release, but Ray ensures he won't return to the streets.

Season 4, Episode 7: Norman Saves the World - Ray seeks to free Mickey by leveraging a scandal involving actor Sherman Radley. Ed Cochran double-crosses Ray, attempting to profit from the situation. Ray confronts both Cochran and the Texan, who reveals the location of Fiona Miller's body. Mickey secures a transfer to the prison's gay wing. The episode concludes with Mickey's transfer going through.

Season 4, Episode 8: The Texan - Ray visits the Texan in the hospital, learning about his past with Ezra. Hector's rematch is jeopardized after Marisol's public declaration. Ray enlists Lena and Daryll to ensure the fight proceeds. Ray confronts Conor about his reckless behavior, taking him to a rough neighborhood. The Texan dies in the hospital. Ray tells his daughter that he did everything for her.

Season 4, Episode 9: Goodbye Beautiful - Ray helps Sonia and her daughter escape as her uncle Dimitri arrives in LA. Mickey's heist in Primm goes awry, and Sylvie is fatally shot. Lena poses as Sonia to kill Vlad. Dimitri's men capture Avi. The episode concludes with Dimitri demanding Sonia in exchange for Avi's life.

Season 4, Episode 10: Lake Hollywood - Ray bargains with the Russians, trading stolen art for Avi's safety, while Hector's life spirals. Hector murders Marisol after his wife leaves him. Ray covers up the crime, staging it as a suicide. Dimitri executes Waller for selling forgeries. Ray calls Sokolov, indicating he will repay his debt.

Season 4, Episode 11: Chinese Algebra - Ray attempts to free Avi by betting on Hector's fight, but the FBI arrests him. Mickey places the bet in Vegas. Ray secures Avi's release by giving Dmitri his art back. However, Ray is arrested after Sonia Kovitsky flips and gives him up. The episode concludes with Agent Barnes informing Ray, "You're f***ed, Ray".

Season 4, Episode 12: Rattus Rattus - Ray, pressured by the FBI to wear a wire, learns Sonia has turned evidence against him. He manipulates the situation, playing the Russian mob against the FBI. Mickey's scheme inadvertently provides Ray with leverage. Ultimately, Dimitri and Sonia are killed, and Ray hands over evidence to the FBI. The Donovans celebrate Hector's win, with Abby claiming invincibility.