Season 4 Preview

Nurse Barbara Gilbert arrives at Nonnatus and, after a disastrous start, earns the respect of her colleagues by helping a new mother overcome difficulties. Trixie faces one of the most emotionally draining cases of her career, and the Turners broker a domestic deal that breaks the mold for the 1950s and 60s. Sister Evangelina finally agrees to undergo tests for her abdominal pain. Premieres 3/29.