Scientists on the last few days of their stint in a deep sea mining operation stumble upon a mysterious Russian ship, “Leviathan”, which has sunk and perhaps was ambushed by their own navy. They loot some cargo on board and inadvertently bring back the remnants of a genetic experiment gone awry, which they also set loose upon their own vessel, to gruesome and nightmarish results. Peter Weller, Amanda Pays, Richard Crenna, Daniel Stern, Ernie Hudson, and Hector Elizondo appear in this film directed by George Cosmatos.
The story follows First Blood, where John Rambo (Sylvester Stallone) is in prison for his one-man army heroics against law enforcement in the first film. Here, Colonel Trautman (Richard Crenna) approaches Rambo to undergo a covert operation that will presumably save the lives of thousands of POWs still in Southeast Asia, if he can find evidence that they are still being held captive. Rambo is hired only to take pictures, but that doesn’t sit well with the disgruntled vet, who uses the opportunity to get them out while he can. However, corrupt government officials don’t want Rambo to find any POWs, as this would complicate American relations in the area, and when irrefutable evidence is given, the mission is aborted, leaving Rambo all by himself — one man against an army of sadistic Vietnamese and Soviet military advisors, merging America’s former fight with the Cold War enemy of today..