This episode starts off with some lady killing her husband over taking an ex to prom. Garth returns in this episode to help sam and Dean. Tensions are getting high between Sam and Dean. The ghost that poses ppl is an evenging spirit called the unknown soldier. They find out some kids took an old penie from his tomb. Dean gets aholed of the penie and goes after Sam Garth stops Dean before he can kill Sam. The episode ends with Sam letting Dean know that if he doesn't get over everything Sam will.