Uchuu Show e Youkoso

During a summer camp at their rural school, 5 children rescue what appears to be an injured dog. Their patient is actually Pochi, an alien who thanks them with a trip to the Moon and introduces them to a dazzling society of travelers from across space.

The promised excursion becomes a much longer adventure when travel back to Earth is halted. Far from adult help, the children must stay together and find a route home while becoming entangled in dangers surrounding Pochi and a spectacular interstellar show.