The kids mess with Renton, Renton finds out why (which I'm going to leave out so there's no spoiler.)
The kids accidentally shut down the ships camouflage, Renton saves the day. Eureka be's a teen mom some more. We're still not told where the heck these kids came from or why they're aboard the crew. Are they the adult crew members children and the adults just aren't telling Renton that? Are they rescued orphans? Are both they and Eureka going to turn out to be robots? We may never know.