A mackerel from the sea attempts to escape from the seafood restaurant.

Padak is caught in a net and gets dumped into a restaurant tank. Master Oldfish is the only one that's survived that long in a place where death is certain. He uses his experience to help the other fish survive.

Padak's unrelenting drive and attempts to make it back to the ocean inspires the fish in the tank; which disrupts the pecking order in the tank and conflicts with Master Oldfish's respect among the fish.

In the end, will the fish accept their fate or will they fight to change it?