11-year-old Kaisa has moved from a cold Nordic country to a tropical island with her environmentalist dad, who is there to help the locals deal with the big garbage dump in the middle of the island.

Kaisa’s dad is too busy to spend time with her, so the lonely Kaisa eventually meets local boy Budi, who works at the dump recycling trash. To Kaisa’s amazement, Budi has found a way to create small magical trash creatures to help with his work. An argument between the two causes an accident and suddenly things get out of control. The monsters start to multiply, grow and eat things in their way!

Kaisa and Budi will need to find a way to not only stop the monsters, but also convince the adults of the danger that the monsters, and the trash they feed off of, are creating.