All 23 episodes from the fourth season of the American crime drama following mystery writer Richard Castle (Nathan Fillion). In this series, after recovering from her close encounter with death, Detective Kate Beckett (Stana Katic) resumes her duties at the NYPD, once again working alongside Castle. While undertaking various murder investigations, the pair attempt to find Beckett's shooter. The episodes comprise: 'Rise', 'Heroes and Villains', 'Head Case', 'Kick the Ballistics', 'Eye of the Beholder', 'Demons', 'Cops and Robbers', 'Heartbreak Hotel', 'Kill Shot', 'Cuffed', 'Till Death Do Us Part', 'Dial M for Mayor', 'An Embarassment of Bitches', 'The Blue Butterfly', 'Pandora', 'Linchpin', 'Once Upon a Crime', 'A Dance With Death', '47 Seconds', 'The Limey', 'Headhunters', 'Undead Again' and 'Always'. What's in the box DVD