After a high-profile political assassination goes sideways, an injured hitman hides out amongst a tribe of snow monkeys in the mountains of Japan.

Monkey and Bryce arrive in Tokyo seeking revenge. But will the differences in their style doom the mission before it even begins?

Monkey and Bryce investigate the evil General Kato. The trail leads to an underground casino, where Monkey embraces the vices of the human world while struggling to continue his mission.

Monkey and Bryce break into a prison to hunt a mysterious villain known as The Accountant and Monkey squares off against the prison's most dangerous inmate.

After the Yakuza put a price on Monkey's head, he and Bryce must face off against a who's who of the city's most colorful assassins, and their greatest foe of all: Bryce's ego.

Monkey and Bryce's powerful target releases an army of doubles to throw them off his scent as Bryce tries to make peace with his past.

After battling their toughest foe yet, Monkey and Bryce's partnership finally comes apart at the seams.

Ditching Bryce, Monkey returns to his old hot-springs and attempts to join a new tribe. Meanwhile, Bryce is forced to relive the events that thrust him down the path of assassin-hood.

A reunited Monkey and Bryce get some much needed help from a pair of unexpected friends. They head to their final target and discover a startling truth.

As Monkey and Bryce near the end of their journey, they struggle against obstacles of their own making.