The sixth season finale of The Expanse , " Babylon's Ashes ," depicts the climax of the Free Navy conflict as Earth, Mars, and the Belters collaborate to seize Ring Station from Marco Inaros. Following a massive space battle, the episode features a significant political shift involving the creation of the Transport Union under Drummer and the consumption of Inaros by the Ring Entities. The narrative concludes with the Rocinante crew finding peace, while leaving the Laconian subplot unresolved.