The Red Skull turned Genosha into a concentration camp, and abducted numerous mutants and Inhumans. His activities were tracked down by Magneto at the same time Scarlet Witch, Rogue, and Havok from the Avengers Unity Division were captured by the S-Men and brought to the island.
After escaping captivity, the Avengers encountered and rescued Magneto. The Red Skull and the S-Men confronted the escapees, but after using Mutant Growth Hormone to enhance his powers, Magneto managed to wipe out all members of the S-Men, before killing the Red Skull without the use of his mutant gifts, offering him a “pure” death. However, Erik had merely unleashed a more powerful persona of the Red Skull, Onslaught!
Related Dork Side Toys links: Marvel Legends Onslaught BAF, All Marvel Legends, Newly Listed Marvel Legends Captain America Civil War Wave Set of 7.