dove into the water to help. kpix 5's anne makovec talked to one of them about the desperate fight to save the driver. >> reporter: this home video shows the last few seconds before the van dropped below the water line. >> it's haunting. >> reporter: the men you see pounding on the back window, members of a youth sailing team who happened to be nearby. >> it was just that we had to get it out like we had to save this person. >> reporter: andrew and his teammates were at a fundraiser at the golden gate yacht club. >> we heard some screaming and looked over and there's this van that had just gone in the water. and there's people screaming and people screaming and it was just like oh my god. >> reporter: six members of the team immediately jumped into this boat and traveled about 1,000 feet to where the van was sinking into the bay. >> well, i was driving and they were on the boat and already stripping down to get ready to jump into the water and grabbing the tools. >> reporter: three of...