In 2177, the Sirius was an ageing space freighter which was being taken to the space museum by Dan Dare. As it was passing Jupiter it lost power to all sectors. Unable to escape a force from the planet's red spot, Dare called for the craft to be evacuated, though soon realised he was the only survivor.
The starship comprised of:
- computer sector
- reactor sector
- navigation sector
It was equipped with rocket escape craft.