TNT To Run ‘Castle’ Marathon On September 15th

Castle fans get ready! TNT is going to be running a special eight-hour marathon of the series on September 15th to get you ready for the Season 4 premiere on ABC!

The fourth season of the hit crime-drama will launch on ABC Monday, Sept. 19, at 10 p.m. (ET/PT). In addition, the complete third season will be available on DVD beginning Sept. 20.

TNT’s Castle marathon will include one episode from the series’ first season, two from the second and five from the recently completed third season. The marathon will climax with a presentation of the season 3 finale. Castle is set to become a regular fixture in the TNT lineup in summer 2012.

The following is the complete schedule for TNT’s Sept. 15 marathon of Castle episodes (all times shown are ET/PT):

3 p.m. – “A Chill Goes Through Her Veins” – A frozen woman found at a construction site leads Castle and Beckett to a years-old mystery.

4 p.m. – “A Rose for Everafter” – While investigating the death of a bridesmaid at a wedding, Castle runs into an old flame (Alyssa Milano).

5 p.m. – “A Deadly Game” – Castle and Beckett investigate what seems to be an intelligence operative’s assassination; Beckett’s relationship with Demming strains her relationship with Castle.

6 p.m. – “A Deadly Affair” – When Beckett and her team burst into an apartment on a murderer’s trail, they see Castle standing over a dead woman’s body holding a gun; Beckett arrests Castle as he asserts his innocence.

7 p.m. – “Punked” – A young mathematician is shot with a 200-year-old bullet, inspiring wild theories by Castle about a time-traveling murderer.

8 p.m. – “Nikki Heat” – When Castle’s novel Heat Wave becomes a movie, actress Natalie Rhodes accepts Beckett’s invitation to visit and learn about the character she will play. Natalie observes Castle and Beckett’s investigation of the murder of a matchmaker.

9 p.m. – “Knockdown” – The retired lead detective on Beckett’s mother’s homicide case is gunned down after telling her he has new information. Castle and Beckett’s partnership grows stronger.

10 p.m. – “Knockout” – A professional hit man (Max Martini) with information about the murder of Beckett’s mother escapes during a court hearing; Castle and the team uncover a deep conspiracy.