Sacha quickly quashes Zosia and Arthur's concern over a patient with a suspicious past. As Sacha struggles to keep his junior doctors in line, will he be able to follow the rules himself? Jonny attempts to make amends to Jac as an incident in the hospital brings them closer together as parents - could this be the end of their hostilities? Adele proves she's got the gift of the gab as she assumes Mo's identity on a local radio show, but does she really know what she's getting into?