venessa medina gives us a closer look at that rescue effort. >> everything started to fall, and i just ran towards on the other side of the store. >> reporter: jan was inside party city when the shelves began collapsing. >> bang, i mean. it was loud. i thought it was like the roof falling down. we had to run towards the door. >> it sounded almost like -- there was thunder. i heard a boom, boom, boom, and i remember continuing to somebody and saying what was that. >> when we got here, what we found were that a total of seven aisles had collapsed, domino effect, on to each other. >> reporter: lw black was inside the store setting up a display when one of the shelves buckled on top him. >> it pop down and i'm sitting >> i was just saying get out, get out. >> reporter: black getting stuck in between a panel and he was okay but concerned for everyone else inside. >> it was a domino effect. the shelves are going to be falling and these things like 8 feet tall. so if somebody's in between them and that shelf comes over on them, they're gone. >> this time special operations crews are in there