The episode airs a few weeks after Bobby's death, Dean has now become obsessed about hunting Dick Roman, and leaves no stone unturned in doing so, even asking help from Frank Deveraux. Another problem, in the form of Krissy (Madison McLaughlin), forces them to divert their attention. Krissy is a kid whose father is engaged in the hunt. She calls Bobby's phone after her dad fails to show up. Dean, hell bent on capturing Dick, fails to see the importance in helping her, while Sam realizes that Krissy needs immediate help and decides to help Krissy find her dad. However, this mystery might hold some dangerous implications for Sam, whereas Dean and Frank come to bond over their respective tragedies. Sam ends up captured by the monsters and Dean, after realizing he's in trouble, rushes to his rescue. Things degenerate into a hostage situation, but Krissy kills one of the monsters, allowing the Winchesters to gain the upper hand and kill the other. Following the advice of the brothers, Krissy's father decides to leave the life so she can have a normal life.
Source: Wikipedia
Source: Wikipedia