Mal hears the tense, sinister music playing, so he realizes something's wrong and rushes up. Wash tells Mal that somebody on the ship went on the Cortex and contacted the nearest Alliance ship. Wash scrambled it, but he doesn't know how much got through. Mal says something lengthy in Chinese ("I just can't get enough WWE Smackdown! Or Girlfriends!"). Wash says they've got a mole on board. Hmmm. Could it be Simon? Could it be Book? Or could it be the guy we've never seen before? That's a poser.
But Mal's made up his mind, regardless of the fact that we all know what's coming and that these next few scenes will have all the dramatic impact of an episode of Reba. We cut to Simon, looking over a large metal container in the cargo bay. He turns around, and Mal's there. He quips, "Forget your toothpaste?" and punches Simon right in his pretty little kisser. Simon goes down, but comes back up demanding to know what the hell is going on. Mal is certain Simon is a fed. Simon insists he doesn't know what Mal is talking about. Mal pulls a gun on him and demands to know what Simon told the Alliance. Just then, Book wanders out of a nearby corridor and says that Mal's got the wrong guy. Book looks meaningfully up on the catwalk. Mal and Simon look up to see the guy we've never seen before up there with a gun. How Book knew the guy was up there before he even entered the cargo bay is beyond me.
Dobson orders Mal to drop the gun. He does, and raises his hands, assuming that they've been caught for scavenging. But no, it's not Mal he's after. Dobson tells Simon that he's been bound by law. It takes Mal a moment to process this, but then he asks if there's a reward. Heh. Everything gets tense as Dobson starts getting all L.A.P.D., demanding Simon get on the floor even though he's unarmed and using threats and intimidation on Book and Mal. He accuses Mal of harboring fugitives, even though of course Mal had no idea. Mal realizes that now they're all in trouble, so now his neck hairs are getting up. He and Book and Dobson bicker back and forth. Dobson threatens to shoot Book. The argument starts getting louder. Then Kaylee and Jayne walk into the cargo bay to see what's going on. Dobson reacts to the sound of Kaylee's voice and instinctively shoots her in the gut. She goes down. Simon and Mal rush over to Kaylee. Even Inara rushes down from her shuttle when she hears the fight. In the moment of confusion, Book disarms Dobson and punches him out. As the others tend to Kaylee, Jayne strides over to Book and orders him to get out of the way so he can get to Dobson. Book says, "You're not killing this man." Jayne responds, "Not right away." Book insists that Dobson is no longer a threat. Kaylee, still conscious, hears that and mutters out a shocked, "What?" Jayne pulls his gun on Book, but above him on the catwalk, Zoe pulls out her sawed-off shotgun and overrules him, ordering him to tie Dobson up.
Simon orders Kaylee to try to stay conscious. He asks her if she can move her feet. She whispers, "Why? Are you asking me to dance?" See? She already knows he's gay. Simon asks if they have a working infirmary. Mal tells him that they do. The Wash comes on to the communicator and tells them all that they've been hailed by an Alliance cruiser and ordered to stay on their current course so that they can be intercepted. Simon stands up and tells Mal to turn the ship around and run. Mal refuses. Simon says he won't treat Kaylee unless he does. They argue. Zoe warns him that if Kaylee dies, he won't even make it to the feds. Simon points out that Kaylee would still be dead. Mal gives a "spoiled rich brats getting away with murder" speech. Simon insists that they turn the ship around. Everybody argues some more. Kaylee starts sobbing, so Mal gives the order to turn the ship around.