Astrid and the gang are excited to help two scientists track down a mysterious, never before seen fish rumoured to be living on an underwater planet. But it isn’t long before things take a shocking turn when Astrid and the Space Cadets discover that they have been tricked – the scientists are actually infamous Intergalactic Sea Bandits!

Can the gang catch the Sea Bandits and rescue the treasure? It’s going to prove a difficult job especially when they find themselves swallowed whole by one of the Guard Sharks . . .

Join Astrid and the gang on more adventures in Attack of the Snailiens and Race from Planet Peril!