Before introducing this film, we need to talk about some history. Project Mercury was the earliest manned space program in the United States. The first manned space flight was on May 5, 1961. In the two years before that, NASA tested the unmanned Mercury spacecraft many times. The last test flight was at the end of January 1961. The passenger was the chimpanzee Ham, and the spacecraft flew 700 kilometers across the Atlantic Ocean. There were several minor problems during the flight, but Ham survived and landed at sea. Later, NASA never invited Ham to board the spacecraft again. The story of this film has to start with the brave chimpanzee astronaut Ham. In order to benefit from the reputation of the Ham family, a senator found Ham's grandson, the useless and stupid gorilla Ham III, and asked him and two ape companions to take the most advanced spacecraft and travel through a wormhole to a strange planet. There, Ham III encountered a tyrant and embarked on a wonderful journey.