They may not be the brightest monkeys in the universe, but they’re certainly the most entertaining

Brothers Gus and Wally are monkey astronauts. They're not the brightest or coolest astronauts, but since they're the only ones around, they are called upon to go into space and carry out different kinds of important missions—including battling rogue black holes and vengeful aliens. Other members of the brothers' crew include bossy astrophysicist Dr. Chimpsky, who gives the monkeys their assignments; YAY-OK, a devoted robot that is slightly outdated and is the brothers' only hope to help keep them on course; and Inky, a space octopus and artist who communicates through his ink drawings.