1x13 - Street Fighter

A mysterious warrior starts destroying both Bison's strongholds as well as those under Street Fighter jurisdiction. Both sides blame the other and it eventually comes down to Bison and Guile meeting on a Volcano for a final showdown. However, clumsy clues were given to both warriors which lead them to the location of the battle by none other than Akuma. Akuma wants both Bison and Guile to fight to death, where Akuma will then destroy the winner and steal their chi. Bison and Guile are forced to work together and eventually attack Akuma, only for him to escape via teleportation.