From the introduction:
While returning from another mission for the Starfinder Society, the PCs receive a pre-recorded message from Venture-Captain Arvin, directing them to change course and head for Akiton. The Gonjar, a shobhad clan based near Ka, the Pillar of the Sky, has requested the Society’s aid.
The PCs meet with the Gonjar’s representative, Rolanok, in a bar outside Hivemarket, Akiton’s primary trading hub. Rolanok explains that Szelanius, a witchwyrd thief, has stolen several of his clan’s cultural artifacts and is currently hiding out in Hivemarket. The Gonjar attempted to apprehend her, but the khulan—Hivemarket’s impartial fey arbiters of order—kept justice from being served. The Gonjar are holding the perimeter, but they need the PCs to enter Hivemarket and retrieve the artifacts.
To do so, the Starfinders must perform some odd jobs for an ysoki mechanic, infiltrate and fight their way through an underground cold storage facility, and recover as many artifacts as possible before Szelanius can destroy the evidence. On their way out, the PCs must confront the thief in the Hivemarket square and somehow goad her into throwing the first punch, inciting the khulan’s wrath. Whether or not Szelanius escapes, the PCs must then engage her crew in a low-flying, in-atmosphere starship battle for the rest of the Gonjar relics!