A disappearance of a young mare leads to the investigation of her disappearance begins. When the body was found on the beach,the death led to a shark. When the shark comes for the tourists, Twilight Sparkle, Applejack and Rainbow Dash sets on the "Orca" to kill the shark. But the boat floods and sinks slowly. With shortage of fuel, the trio hold out on the sea and try the last ideas of killing the shark.