Nine years after a botched robbery in Ludendorff, North Yankton, former bank robber Michael Townley is living under witness protection with his family in Los Santos, San Andreas, under the alias Michael De Santa. When Michael discovers his wife Amanda in bed with her tennis coach, he chases the coach to a mansion and destroys it out of anger. The mansion's owner, Mexican drug lord Martin Madrazo, demands compensation, so Michael and his accomplice Franklin Clinton perform a jewellery shop ....