Following a disruptive encounter with a classified operation, The Punisher is apprehended by Black Widow, an agent of S.H.I.E.L.D. and an Avenger. Tasked by Director Nick Fury, the duo embarks on a mission to thwart Leviathan, a nefarious global terrorist group aiming to auction pilfered S.H.I.E.L.D. tech to the highest bidder. As the vigilante and the spy unite forces, their goal is to safeguard this advanced technology from malevolent forces. The destiny of the world, as well as that of the Avengers, rests on their success.