The future world is living on the brink of extinction due to severe environmental pollution. The world sought solutions. As a result, they discovered that there was an atmospheric pollution eliminator on the planet Thales, and countries sent warships. However, these warships were repeatedly destroyed or went missing in unknown outer space. It was at this moment that a scene of a previously dispatched spaceship exploding appeared, it was the spaceship Yamato (...). Subsequently, Dr. Kim of Korea built the most powerful warship, inspired by the old Turtle ship. To build this Turtle ship, parts from Taekwon V were needed. Despite the tearful protests of Hoon and Younghee, the intact Taekwon V was dismantled for use. The day before departing for the planet Thales, a mosquito-like microorganism dressed as a sailor activated the Turtle spaceship, and the entire crew, consisting of minors except for Captain Choi and adult crew members, set off into space. From then on, they faced great danger due to the constant interference of alien villains. However, in these dangerous circumstances, the Taekwon V, which had been separated and stored within the spaceship, was reassembled and appeared, greatly helping to defeat the villains and obtain the pollution eliminator. Once the atmospheric pollution eliminator was obtained, the crew returned to Earth.