Sergeant Keroro

Aliens come to invade the Earth! But Sergeant Keroro gets captured by a human family, the main fleet retreats and leaves him stranded, and now he's all alone, sir!

Keroro goes to find his lost comrades, and winds up finding one of them: Tamama, the ultra-polite, who is living with a girl named Momoka. They both have a terrible temper, though...

Keroro has terrible cabin fever, and is desperate to find some way to leave the house without getting dissected or experimented upon. Maybe he could pretend to be human?

There's a new frog in town: Gororo. He's rough and tough and determined to take over the Hinata family's home so they can use it as a base of operations. Which involves first getting rid of the current residents!

Now that Keroro's gotten his very first allowance money, he's determined to go buy a rare Gundam model with it. But he can't exactly do that while he's invisible. Time to beg for Fuyuki's help!

Momoka has a cunning plan: she's going to invite Fuyuki to the beach for a romantic day, and confess her feelings. But his family and all three frogs decide to come, as well!