Please answer the following question: Generate a question that has the following answer: ham for the following movie plot: The film begins with Ham 3, grandson of the first chimpanzee in space, being a cannonball at his circus and later being criticized by his grandfather's friend Houston. Meanwhile, an unmanned NASA space probe called the Infinity is dragged into an intergalactic wormhole, and crash-lands on an Earth-like planet on the other side of the galaxy. Zartog, a bad man, accidentally discovers how to take manual control of the on-board machinery and uses it to enslave the population. Faced with the loss of the probe and probable loss of their budget, the scientists have to find a way to regain contact with and retrieve the probe. Technology chimp Comet hacks into NASA's computers and gets the scientists to pick them as astronauts to explore the planet and get the probe back, with the help of the fearless Lt. Luna, and their spastic commander, Titan. The Senator likes the idea, but wants something extra special to grab the attention of the media, and eats Ham. Ham is uninterested in the mission, but he falls for Luna (though he is unaware that Luna was doing the same thing for Ham). They go through the space training. Ham doesn't take the training seriously and he keeps being immature during the training which angers Houston, Luna and Comet. The three get probed, having Luna and Titan screaming, but Ham's internal organs can stand the prodding, forcing him to ask Luna to help him move next week. Comet wants to go through the training; however, the scientists only want Ham, Luna, and Titan, not Comet. Comet is upset about it. Houston comforts Comet. Before the mission begins, Ham tries to use the jet pack to escape; however, he crashes at plane causing a disaster. He goes out cold and put in the space ship for the mission as punishment. The three chimps enter the worm's hole, where Titan and Luna pass out from the smell, leaving Ham with the task of getting the ship out and landing it. This is done, and Ham and Luna explore the planet, during which their ship, along with Titan, is taken by a group of aliens sent by...
A:
What is the name of Ham's grandson?