In the 22nd century, the space Commonwealth sends a team of its best people to explore outer space beyond the solar system. The main character, Lieutenant Lida Khorosheva, becomes the senior pilot of the expedition. Filled with anticipation of future achievements, she is ready to conquer new limits and reveal the secrets of the Universe. The ship sets off, but from the first days of the flight, the captain of the ship seems to have gone crazy with the power given to him. He removes Lida from service and gives orders, the meaning of which he conceals from his team. The ship goes off course, and the mission is in jeopardy. Lida Khorosheva challenges the captain. She tries to restore order and save the lives of the ship's passengers. And when Lida thinks that she has already dealt with everything, it turns out that the captain has not gone crazy, and the goal of the expedition is completely different. Will Lida Khorosheva be able to save the ship and lead the crew to the goal? ?