The fifth and final season finds Captain Burnham and the crew of the U.S.S. Discovery uncovering a mystery that will send them on an epic adventure across the galaxy to find an ancient power whose very existence has been deliberately hidden for centuries. But there are others on the hunt as well ... dangerous foes who are desperate to claim the prize for themselves and will stop at nothing to get it.

The fourth season of Star Trek: Lower Decks finds the U.S.S. Cerritos ensigns being challenged in new ways and given new opportunities, while also learning they’ll be “lower decks” for a long time to come.

士官长约翰-117带领他的斯巴达精英团队继续对抗星盟威胁。在一个荒凉的星球上发生了令人震惊的事件之后，约翰无法摆脱他的战争即将改变的感觉，并冒着一切风险来证明其他人不会相信的事情——星盟正准备攻击人类最大的据点。随着银河系濒临崩溃，光环成为人类救赎或灭绝的关键，而约翰踏上了寻找光环的旅程。