The best episode directed by John MacCarthy is "The Girl with the Dungeons and Dragons Tattoo", rated 7.611/10 from 18 user votes. It was "written by Robbie Thompson". "The Girl with the Dungeons and Dragons Tattoo" aired on 4/27/2012 and is rated 0.3 point(s) higher than their second highest rated, "The Raid".
Dick Roman acquires Frank's hard drive that contains sensitive information about the Winchesters and gives it to an unsuspecting brilliant hacker named Charlie telling her she has 3 days to crack the encryptionl or she is fired. Sam and Dean are tipped off that Dick has the hard drive and race to get to Charlie before she breaks the code. Meanwhile, Bobby tries to help the brothers, but his rage towards Dick for killing him starts to get in the way.
Director: John MacCarthy
Writer: Robbie Thompson
A chance to take out a nest of vampires backfires when the alpha-vamp shows up and turns the tables on Mary and the British Men of Letters, who are doing their best to recruit Sam and Dean.
Director: John MacCarthy
Writer: Robert Berens
When a mysterious abductor targets members of a virgin chastity group, Sam and Dean go undercover to track down the killer when Sheriff Jody Mills asks them for help. However, Dean disappears and Sam and Jody end up tracking him down.
Director: John MacCarthy
Writer: Jenny Klein
Dean encounters a surprising message on Bobby's phone, and Sam and Dean investigate.
Director: John MacCarthy
Writer: Eric C. Charmelo