If you've been missing Jennifer Garner [1]'s badass spy character from Alias, Sydney Bristow, ever since the show went off the air in 2006, then let us introduce you to Riley North. In Peppermint, Garner plays a grieving mother and widow who witnesses her husband and child gunned down by gang members at a carnival. After the murderers manage to avoid a jail sentence thanks to a corrupt judge, Riley vows to get revenge by transforming herself into a deadly vigilante. Five years later, bodies of gang members start showing up — is Riley behind it? Watch the trailer above before it hits theatres on Sept. 7.