Mission Orion: The Travel through Time

[HIGHEST RANK: #1 IN SCIENCE FICTION]
The world is ravaged by a nuclear war. Borders were redrawn, powers had shifted. But the worst was yet to come. The sun was soon becoming a supernova, wiping out the planets. There was no other option left but to leave Earth, once and for all. But humans find themselves face to face with a fourth-dimensional civilization. And the result, a three-way battle.
This is a war for all civilizations, of all universes. This is a battle for survival, this is MISSION ORION.
#1 in Science Fiction as of 23 February 2018.