They Might Be Giants

Two teddy bears in a spaceship land on Earth to look for a worm. One is quite handy with a laser gun. Courage plays the horn and it attracts a worm, which just happens to be the worm that the teddy bears are after. When Muriel won't tell them where it is, and the teddy bears blow up part of their house. The worm comes and it turns out he is a giant blue worm from outer space that eats the teddy bears as well as Muriel. The worm belongs to a giant...