With most of the squad dead or in pieces, the remainder of the Sentinel Squad must find out what they are made of to escape the Savage Land! The action-packed origin of the new Sentinels rockets towards its conclusion!

Despite the catastrophic casualties, Alexander Lexington's resourceful squad was able to thwart a Mutate plan to build an army of genetically enhanced dinosaurs, as well as rescue a pair of imprisoned teammates in the process.

The team was able to stop the threat. First, by infiltrating the Mutate compound, then pooling their various specialties to create an ultra-modified super-Sentinel from the scrap metal of their fallen comrades. Now, the Sentinel Squad survivors are looking forward to a well-deserved bit of rest and recuperation. Unfortunately, theu're about to get a nasty surprise, courtesy of their treacherous turncoat teammate, Nathaniel Briggs...