After Steven and the Homeworld Rubies were ejected into space, a bubbled-up Steven gets to interact with one of them -- Eyeball, to be exact. We learn a little more about Pink Diamond as the two squabble. We even get to hear the song that we only heard snippets of in the end credits as the Crystal Gems reunite with him. The season 4 premiere gives Peridot a chance to show that she's "smarter than the average Peridot" by capturing a corrupted Gem. Lots of Wile E. Coyote antics ensue in the process.