In this episode of Bones, the following happens. When Booth's back give him trouble again, he calls Bones for her help but she refuses to help. But he manages to talk her into it and so she does it, but manages to injure him further. And so Agent Payton Perotta is called in to help, whilst Booth is off. When a body is found in medieval princess dress, Bones investigates. Soon the victim is IDed and the team are lead to a sci-fi convention. After going undercover, Sweets and Bones drive back into town. During which a car drives into them and runs them off of the road. We then see the black knight going down to the car and taking back the sword. Bones of course wakes up and tries to stop him. She manages to get the sword back and the black knight runs off back to his car. When Booth hears about it, he wants to come back to work, which is amazing considering he can't walk and he is on very strong pain killers. He then talks to the agent and tells her that if anything happens to Bones he will not be happy. Soon we discover who ran Sweets and Bones off of the road and he is brought in for questioning. He claims to have loved the victim and that when she wanted to sell his prop, it all went wrong and he killed her. That night Bones goes round to see Booth and tells him all about the case. She looks at his x rays and sees that he has been misdiagnosed, and offers to solve his back problem for him.
He tells her no and but she manages to talk him round. As she does it the other FBI agent comes by and so Bones leaves as does the other FBI agent, who was shocked to see Bones at Booth's apartment.