The second Tom Corbett, Space Cadet adventure. ***** At Space Academy, cadet Tom Corbett and his pals Roger and Astro are at the top of their class. So whenever thereâs an important â and possibly dangerous â mission to be handed out, the crew of the Polaris âsticks out like a hot rocket.â But this time the âBest Unitâ in the Academy may be in over their heads. Theyâve been placed under the command of Major âBlast-Offâ Connel, a legendary spaceman who seems determined to cut the boys down to size. After their ship is refitted for hyperdrive, the crew of the Polaris heads into deep space for Alpha Centauri. Awaiting them are disciplinary demerits, planetary perils, a run-in with a pair of pirates, and enough trouble to last Roger Manning a lifetime!