sighting. >> holy [ bleep ]. >> nushagak buy, alaska. it's a calm day at sea, and kyle is fishing with his father jason and brother kelly. >> there was hardly a breath of wind. >> while the air remained still, the water suddenly starts to move. >> what is that? go get my binocs, quick. >> my dad was saying, hey, what are those things right there? i was like, i don't know, they look like waves. he's like, those aren't waves. [ bleep ] >> yeah, looks like a gigantic eel. >> goes, you better get your cameras because this is something that we need to crash on film. >> come here quick with your camera. >> kyle and jason both grab cameras and start recording. >> look how fast they're going. >> look how big they are. >> couldn't tell if it was sea snakes or something that -- might have been seals. >> see it?