Sister Julienne volunteers to put up four trainee doctors at Nonnatus House while they undertake the practical aspect of their obstetrics diploma, hoping the exercise will remind the council how vital the home is to the community and help remove the threat of demolition. There is a lot of excitement about the new arrivals and the doctors don't disappoint. On his CDC rounds, Fred comes across a street marked for demolition, with one house clearly showing signs of life.

Ko Sho Blo! Trigger-happy space police the Judoon are targeting 21st-century Gloucester. The Doctor, Yaz, Ryan and Graham race back to Earth in order to prevent them doing too much damage to the cathedral city. But who are they looking for, and what did they do to incur the wrath of the Judoon?

Liam out-Gallaghers Frank, Lip works to convince Tami to stay in Chicago with their baby, Debbie turns over a new romantic leaf and Kev’s new business takes off, but V wonders where the money is going.

As Supergirl tries to thwart a Toyman copycat, Winn Schott returns from the future.

Paddy McGuiness, Chris Harris and Freddie Flintoff go on a road trip in a trio of affordable second-hand convertibles. On the test track, Chris puts the new Ariel Atom through its paces, while Freddie goes bungee jumping off a dam in an old Rover.