stun the enemy. a common technique used by u.s. special forces and four kurdish soldiers emerged from the darkness in a four-man stack, evidence of their u.s. training and with them, the first of many freed hostages. this man appears to have blood on his clothes. as more and more hostages are rushed out, kurdish commandos yell at them in arabic to move, move very quick and none of the hostages have shoes. our analysts believes their isis captors wanted them barefoot to make escape even harder. about 30 seconds into the video what looks like controlled chaos turns into mayhem. mixed in with it is the sound after ak-47s most likely used by hostage fighters. they are told over and over to