As the bandits pursue a new clue, Leo raises Miguel's suspicions. Opting to stay behind, Inés investigates Lilí's past and discovers a dark allegation.
After questioning Brendan's attacker, Kat tries again to track down Josh, but instead comes face-to-face with the last person she ever expected to see.
It's March 1970. The team support a pregnant teenage girl whose parents believe in an immaculate conception. Demonstrations cause havoc for the Nonnatus team, whilst Nancy's relationship blossoms.
We're back with a brand-new series following the lives of Britain's Biggest Family, the Radfords. It's been forever since a Radford wedding, but at long, long last, one is coming!