. >> on that rainy day joshua voss, a newcomer to pelican bay was down on the recreation yard with scores of other prisoners. many of them were wearing rain gear, not only as protection from the elements but to hide dozens of homemade weapons. >> i noticed over here some people started stabbing each other. >> this surveillance footage reveals a group of southern mexican gang members unleashing a vicious coordinated attack against a group of black inmates. the beginning of california's worst prison riot. >> i had looked around and all over the yard there was fighting, stabbings going on. >> doug burrell and dozens of his fellow officers tried to subdue inmates with pepper spray and tear gas. every time it seemed the staff had the situation under control, another fight broke out. >> looked like the movie "braveheart," but it was the real deal. >> they started firing shots, so everybody that wasn't involved in the riot laid on the ground. >> but even the gunfire raining down from pelican bay security towers did not quell the riot until one of the inmates was killed. 15 others were wounded. >