As Jake, Katagiri and Samantha pursue the truth about Polina, Sato clings to life - but not all of Chihara-kai are hoping for his full recovery.

As Jake and Katagiri seek new meaning at work, Samantha confronts a thief in her club, and Chihara-kai welcome a returning member.

Katagiri and Nagata ramp up their efforts. Jake gets invited to an exclusive party. Samantha and Sato deal with a growing problem at the club.

As the new yakuza task force takes off, Ishida calls a summit. While Sato and Hayama join forces, Katagiri and Jake investigate a mysterious return.

After a disastrous setback, Sato and Hayama strategize a way forward. Jake and Katagiri pursue their target - and try not to land in his crosshairs.

Chihara-kai attempt to regroup after a devastating shootout. Jake, Katagiri, and Nagata pursue a tip from Samantha.

A passing at Chihara-kai causes upheaval. Jake makes a long overdue visit home. Katagiri hopes a perp will help break his case wide open.

Jake's successful trip to the U.S. propels the group in a new direction, while Katagiri struggles with his case's devastating turn of events.

Sato considers the future of Chihara-kai, while Jake and Katagiri inch closer to exposing the truth about Tozawa.

As Jake and Katagiri close in on a crucial piece of evidence for their case, Sato prepares for the greatest power move of his life.