The Martian Returns to Earth

The earth was hit catastrophically by a nuclear explosion, and the ecosystem completely collapsed. Only a few areas maintained the original ecological balance. Large-scale nuclear radiation has caused severe pollution. The surviving humans can only live in urban fortresses, and the governments of many countries are in collapse. The second generation of Martians, also known as "Martians". They are human beings who have serum-transformed human genes with the blood of the Chosen One, Tiger Lily, and are descendants of the Martian race. At this time, the president of Mars is Xiao Bai, who is Zhai Xuanxuan's eldest son. He positioned Mars as humanity's second line of defense against alien attacks. He sent his twin brother Sean Black and Qin Pengfei, an outstanding representative of the second generation of Martians, as well as their respective fiancées Maya Martin and Zhai Mulan back to Earth to form the third line of defense against alien attacks. After returning to Earth, Xiaohei and his team faced the huge challenges of high residual radiation levels and management of human living environments in various places, especially in lawless fortress city management and dead zones where serious nuclear pollution prohibits human entry. They work together with people on earth to manage radiation zones on a global scale, establish micro-ecological systems, and gradually improve the geographical environment of the earth. Innovative medicines were invented to cure those affected by nuclear radiation and drug addiction. Xiao Hei not only successfully destroyed the Yulu Clan's super-dimensional destruction weapon, the Erxiang Fu, but also ended the Yulu Clan's fate of wandering in the gray world of the Milky Way. In the end, he transformed Mars into a planet battleship and flew out of the solar system, united humans from all civilizations in the galaxy, became the main force of the galaxy's defense fleet, and served as the guardian of the galaxy.