The case against Luca is dropped, so Luca gives in to his inner demons to celebrate the fact that he now owns Vegas and the cops can't touch him. Torello uses these Luca's personal flaws and violent tendencies against him.
One of Luca's former bosses Manny Weisbord suffers a heart-attack. Luca tries to get him a new heart, so mobsters Max Goldman and Steve Kordoa, Luca's former associates put a contract on Luca.
Luca's takeover of the gambling business comes to a halt and Torello hits his other operations even harder. However, Torello suffers a major loss in his private life.
Mike is indicted and used by Luca to destroy Holman's testimony. However, Abrams, feeling guilty for being foolish, helps Mike. Mike breaks up with Inger to protect her from scandal. The Dancer, an ex fence and Abrams' dad, shows up.
Lt. Torello and the MCU search for the person responsible for the murder committed during a home invasion. Feeling the heat from the MCU's home invasion investigation Phil Bartoli orders Ray Luca to take care of the problem personally.
A general strike hits Las Vegas casinos. Luca decides to get the strike leaders on his side one way or the other. Meanwhile, Torello's team must track down a gang that bombing and setting fires to both casinos and the picket lines.
Luca forces the owner of Palladium, the biggest Las Vegas casino still not controlled by the mob, to give in. Meanwhile, Jack Claymore, the undercover FBI agent who's infiltrated Luca's casino meats Torello and becomes compromised.
Torello's after a killer, who might be a federal employee. Following the killer's trail, Mike ends up in Mexico, where he witnesses a drug smuggling operation lead by Luca.