SolarmovieOne

Watch Cats A-Weigh! (Short 1953) online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

Sylvester Cat accepts a position as mouse-catcher on a ship, and his son, Junior, accompanies him. They encounter baby kangaroo Hippety Hopper being shipped from Australia and, as usual, mistake Hippety for a giant mouse.