Nelson Cole was a celebrated hero and decorated officer of the Solar Police Force, which kept the peace throughout the solar system, and defended the united planets against threats from beyond. Cole joined the Force some 300 years after it was founded, and at the time, their headquarters was on Mars. However, Cole's adventures took place throughout time and space. After working for the Solar Police Force, he later became a member of the Solar Air Force. He had no superhuman abilities, but he was a skilled pilot, fighter and detective, who carried a ray gun and knew how to use it.