Resident Evil 5 plot 2-3

Continuing through the marsh, they find Josh injured but safe and track down Irving's boat with his help. Irving injects himself with a parasite variant, Las Plagas, and mutates into a huge octopus-like beast. Chris and Sheva defeat him, and his dying words lead them to a nearby cave to learn more. The cave is the source of a flower used to create the Progenitor virus, which led to the T- and G-viruses and has been used to form Uroboros (a new, powerful strain). Chris and Sheva find evidence that Tricell, the company funding the BSAA, took over a former Umbrella Corporation underground laboratory and continued Umbrella's research. In the facility are thousands of capsules holding human test subjects. Although Chris discovers that one of the capsules is Jill's, it is empty. When they leave, they discover that Tricell CEO Excella Gionne has been plotting with Wesker to launch missiles with the Uroboros virus across the globe; it is eventually revealed that Wesker hopes to take a chosen few from the chaos of infection and rule them, creating a new breed of humanity. Chris and Sheva pursue Excella, but are stopped by Wesker and the hooded figure (later revealed to be Jill, enslaved by a mind-control device on her chest). Excella and Wesker escape to a Tricell oil tanker; Chris and Sheva fight Jill, subduing her and removing the mind-control device before she orders Chris to follow Wesker.