Meeting Jack's daughter Alice and his grandson Steven who's 9 years of age. Apparently Jack had to watch Alice's mother grow old and die. Alice doesn't really like having Jack in her life and especially not Steven's life because she doesn't want Steven to know that his grandfather is immortal. Jack looks after her financially though, as she clearly has quite a bit of money with a nice house etc

We meet Ianto's sister Rhiannon and her family, who live in a rough council estate. It's clear Ianto doesn't see them very often - his young neice and nephew barely look at him when he arrives - but unlike with Alice, Rhiannon does love her brother and wants to know what he's getting up to. Ianto and Rhiannon have a touching conversation about his relationship with Jack, in which he admits that he doesn't know where he stands with Jack. Ianto's family provide a lot of homour in the episode and are very likeable.

Gwen is pregnant, though she doesn't know at the start of the episode and learns about it unexpectedly.

Jack and Ianto's feelings for each other have clearly grown since series 2 but it appears that neither of them have actually talked about their relationship, something which concerns Ianto especially.

Rhys isn't in the first episode very much (he has some nice lines ) but he will become a bigger part of the story from episode 2