Billy the Kid (2013)

All hell breaks loose when a lone bounty hunter kills a member of an outlaw gang. As the gang seeks bloody revenge they kill, soon to be legendary, Billy the Kid's mother, leaving him to team up with the mysterious bounty hunter to enact vengeance on the outlaws. Soon he'll find his and the bounty hunter's lives are fatefully entwined in this shoot 'em up tale of gun smoke and justice in the old west.