SOS - Part 1.International Rescue receives a distress call from the Calypso, a deep space vessel returning from a long mission. Scott and Brains get aboard the plummeting ship and locate the two astronauts in suspended animation along with an old robot named Braman, who sent the original distress call. They wake up the astronauts and take them and the ship's computer data back to Thunderbird 3. Braman stays aboard to pilot the Calypso away from a crash course with a major city in Africa and into the sea. Meanwhile, Gordon borrows Thunderbird 1 to help Parker find Lady Penelope's dog, Sherbert.