S3·E17 The Magnetic Asteroid

A strange asteroid having an exceptionally strong magnetic field, along with the magnetic personality of one, T.J. Thistle, combine to wreak a hit of havoc in space. Tom warns T. J. Thistle that there must be cooperation between the crews of the Polaris and the Sirius if they are to track down the magnetic asteroid. But T. J. wants to carry on his feud with the rival ship.