Sakamoto enjoys a quiet life in retirement with his family. But one day, an old colleague demands he return to the assassin world — or face...

While out on an errand, Sakamoto and Shin encounter Lu Shaotang, the daughter of a mafia boss, who's on the run and targeted by twin assassins.

After learning of the huge bounty on Sakamoto's head, the crew tries to enjoy a family outing at the amusement park while fending off assassins.

With the poison-wielding hitman taken out, the Sakamotos head to their next attraction, where they're ambushed by Dondenkai Ltd's ultimate assassin...

Sakamoto goes all out in a fierce one-on-one duel with Boiled. Meanwhile, ORDER members are tasked with handling a serial case targeting assassins.

Hoping to win the million-yen prize, Team Sakamoto enters the shopping district's survival tournament and teams up with a completely clueless sniper.

While manning the store alone, Lu gets kidnapped by a mysterious group. Sakamoto and Shin pursue her but are halted by an invisible assassin

To rescue Lu, Sakamoto and Shin infiltrate a top-secret lab seized by assassins. Meanwhile, in the prison cell, Lu meets someone from Shin's...