Two independent contract killers come together on an unexpected two-person job for their last mission. Things quickly go awry when the two meet and end up losing their client's body. Despite the conflicting personalities and values, they can both agree on one thing: they are willing to do whatever it takes to finally retire from the organization once and for all.

Aboard the spacecraft LUMINA, robots XA and V4 sit in the maintenance bay, awaiting repair from the human Technician. The two form an unlikely friendship as one is fixed, and the other is slowly taken apart.