A young boy takes his mother's place in a group of gemstone-based beings, and must learn to control his powers. This series is set in the fictional Beach City, where ageless alien warriors, the Crystal Gems, live in an ancient beachside temple, protecting the world from evil. They project female humanoid forms from magical gemstones that are the core of their being. The Crystal Gems are Garnet, Amethyst, Pearl and Steven, a young half-human, half-Gem boy who inherited his gemstone from his mother, the Gems' former leader Rose Quartz. As Steven tries to figure out his powers, he spends his days with his human father Greg, his friend Connie, other people in Beach City, or the other Gems, whether to help them save the world or just to hang out. He explores the abilities passed down to him by his mother, which include fusion (the ability of Gems to merge their identities and bodies to form a new and more powerful personality).
本来只是随便看看，本来是看演员阵容才点开宇宙小子第三季 ，结果故事本身也不算拉胯，没什么特别硬伤。
从观感上讲，宇宙小子第三季越往后越好看一点，不是那种开头强后面散的感觉，至少不是那种一眼劝退的类型。
影片中的情感线细腻而真实，让人感动不已。
特效制作水平低下，画面模糊不清，严重影响了观影体验。
情节老套是这部影片硬伤，观影不久便能猜中后续走向，如同嚼蜡般缺乏惊喜，难以勾起深入探究欲望。