S4·E4 The Two Becketts

A man breaks into a building, and although he tries to escape, he is caught. He then asks for Beckett, saying that he will only talk to him, and no-one else, and although becket doesn't know who he is, he goes to meet him. Once he reaches the place and sees the man, he simply says ""You,"" and punches him. The man then reveals that he is Beckett's father. Beckett takes his Dad to his house, where he tries to exlpain why he ran out on Beckett 10 years ago, after his Mum's funeral. He then explains that he was trying to find out about the whereabouts of a man who is after the two witnesses that will send him to prison. Ed goes to check it out, only to see that the man has escaped. Both of the witnesses are kidnapped and Beckett's Dad finally reveals that he wants to see the man go down because he killed Beckett's Mum. So, Beckett and his Dad go to find the man, as well as the two witnesses and Alex, who got mixed up in the whole thing.