Ulf and the secret of the new one. Ash T.

Ulf, Tita, Haiko and Otto - classmates, best friends and brave detectives that can find any criminal! Rather, they would like that. But nothing interesting happens around... Until one day the new one comes to the classroom. She behaves very suspiciously: she dresses strangely, does not eat anything, shows incredible equalibrous tricks, in huge quantities she buys foil and plastic lids. What if she is an alien? To get to the bottom of the truth only to young detectives!