The Ultraman: Series
The Ultraman: S1 E5 - The Adventure Of The Passenger
S1 E5:
A mysterious incident happens where several thousand trees disappear from the forest in a single night. Henry Nishiki, a Science Guard Party member who has come to Japan from the Africa Zone begins investigating. They burrow underground in Passerger and reach an underground cave where they find Toughgilas, a monster that eats trees.