Eight years after fleeing the Congo following his assassination of that country's minister of mining, former assassin Jim Terrier is back, suffering from PTSD and digging wells to atone for his violent past. After an attempt is made on his life, Terrier flies to London to find out who wants him dead -- and why. Terrier's search leads him to a reunion with Annie, a woman he once loved, who is now married to an oily businessman with dealings in Africa.
Mantis, an ace assassin, returns to the contract killer industry after a hiatus, encountering his trainee friend Jae-yi and a retired legendary killer Dok-go, who now runs the organization.
When top hitman Joe Flood is diagnosed with a terminal illness, he decides to take matters into his own hands – by taking a hit out on himself. But when the very hitmen he hired also target his ex-girlfriend, he must fend off an army of assassin colleagues and win back the love of his life before it's too late.
Framed for his family's murder and left for dead, an ex-hitman will stop at nothing to exact revenge on the masked demons who have taken over his city.