Watch Hop, Look and Listen (1948) : Full Movie Online Free A baby kangaroo hops out of his zoo cage and roams into the surrounding city. The kangaroo stops at Sylvester Cat's home while Sylvester is hunting for mice with a fishing rod. When Sylvester "reels in" the kangaroo, he thinks he has caught a giant mouse and makes a humiliatingly unsuccessful attempt to catch him.