The video below shows Britney's kid sister pulling her friend out of the fight and then dashing behind the counter to get the knife. God knows what she was yelling at the time, but she managed to scare off the pack of brawling men while a beanie-clad employee called for help.
May God smile upon Jamie Lynn so long as she lives.
We know this security video was being shopped around a few weeks ago—the sellers were asking for high four/low five figures. If you know any more about the tape or how the rest of the night played out for Jamie Lynn, email us at firstname.lastname@example.org or email@example.com.