Voluntarily becoming warriors fighting in the interests of an alien civilization is the fate chosen by earthlings sent through a teleport to a planet called Bridgehead. They all took a “one-way ticket”: they will take part in a battle with people like them. Their enemy wants not only to destroy his enemy, but also to eliminate all intelligent life on the planet. And those who hired them want to save the artificially created world. But from the very beginning, everything did not go as planned: the sending through the teleport went wrong, and random people ended up in the group. They managed to come into conflict with the intelligent beings they were supposed to protect. Instead of preparing for the main battle and, in case of victory, the construction of a new human civilization on the Bridgehead, the commander of the earthlings Georgy Reshetnikov and his comrades have to look for opportunities to save the settlement. And for this there will be a long and dangerous journey with an unknown outcome.