Branko has come to Earth on a grave mission: He must find a female and bring her home. What will happen to her on his planet isn't quite clear. But without her, his planet could die.

Tonia has always loved summer, but this one is different. Her best friend is changing and her family seems to be falling apart. Then she meets someone unlike anyone she's ever met before, and she knows that this summer, everything will change.

When their worlds collide, it's like nothing Branko and Tonia could have ever imagined.