It has been 10 years since the space ship Prometheus left on its mission and was never heard from again. The colony ship Covenant holds 15 crew members, 2000 colonists and 1000 second generation embryos. It’s mission is to colonize a planet 7 years away from Earth, but a storm in space awakens the crew, losing one of its members in the process. They receive a signal from an unknown planet that could be used for colonization right away, so they decide to investigate it in hopes it may be a better and closer planet than their original one. However, those who are familiar with the Alien franchise knows how well things work out for crews investigating strange signals.
