Tom Corbett, Space Cadet

The Space Cadets are on a training mission on the passenger spaceliner \"Prince of Centurus\" when it is attacked and boarded by space pirates. The pirates take the cargo and also take the passengers and crew to work in the mines of Mercury. Tom, Astro, and Roger secretly slip back into the crippled and abandoned spaceliner and send a distress call that is picked up by the Solar Guard patrol. Commander Arkwright then uses the rescued cadets to spring a trap on the pirates.