Special Ops veteran Tess (Maggie Q) is out of place at her sister’s bachelorette party until an arrow kills the party stripper with a headshot. As the women realize the house is under siege, Tess immediately shifts into strategic battle mode, and instructs them to block all entries and scavenge for weapons. Sneaking out of the house to evaluate the force they’re up against, Tess quickly realizes that the attackers outside have no interest in letting them out alive. They thought this would be an easy take down, but they didn’t account for Tess, her skills, or the determination of the group. She will fight till dawn.