Aquamarine and Eyeball Ruby seek revenge on Steven for ruining their careers. This leads them to fuse into Bluebird Azurite, who arrives in Beach City and pulls a series of pranks against Steven; the others warm up to her, but Steven has difficulty trusting her, and his suspicions are proven correct when Bluebird takes Greg hostage.

Steven has fused with Pearl to babysit Onion on the same day that he is scheduled to fuse with Garnet to teach a safety seminar. Steven rushes between fusions to try to fulfill both obligations, becoming stressed that he cannot do both activities at the same time. The episode is ultimately revealed to be a safety video hosted by Sunstone herself about the dangers of poor time management.

Avasarala is blindsided while on a visit to Mars. The Roci crew continue their protomolecule investigation while tensions between the RCE and Belters reach a tipping point. Drummer and Ashford track down a terrorist.

Scarlett Johansson hosts with musical guest Niall Horan.

A dutiful DJ springs into action when Fernando asks for help proposing to Kimmy - again. But the results are even bigger and better than expected.

Karolina, Chase and Janet plot their own escape from the Algorithm, while in the real world the rest of the Runaways team up to fight Jonah and get them out.

Ethan is caught between two worlds and Meredith has to decide if she'll protect him. Matty comes under suspicion, but Avron pushes too far. While the Brawlers zero in on the Monster Ring, Doris and Bash celebrate their anniversary.

An official truce is announced but complications quickly arise, threatening the lives of humans as well as Bloods.

Hope urges Jack to read Charmaine's letter. Preacher confronts Paige with his new knowledge. Mel and Doc work together on a pressing case.

Separated from her friends, Lyra must use all of her methods of deception to thwart a formidable foe. Meanwhile, Mrs Coulter plots her next move.