 In the pre-production stages of their next puppet series, Captain Scarlet and the Mysterons, the Andersons would opt to script a second appearance of the Zero-X spacecraft to link the continuities of Thunderbirds and its sequel, which is supposed to be set in the same fictional universe. Captain Scarlet would also prove to be a progression from Thunderbirds Are Go in terms of its depiction of extraterrestrial life on Mars, although the Mysteron antagonists of this series would be more ambitious than the Rock Snakes of the film by actively seeking to attack Earth. The final rescue of the crippled Zero-X emulates that of the airliner Fireflash in the Thunderbirds episode "Operation Crash-Dive".
