Sacha is determined to be strong and positive for Rachel, hanging all his hopes on the chemo and protecting her from the truth. But when Rachel's chemo results come back, his world is turned upside down. Can he tell Rachel the truth? Jac can't bring herself to tell Jonny about the pregnancy, in spite of Mo's protestations. But when they clash over a young patient, Jonny makes a discovery that means Jac can no longer hide the truth. Arthur's attempt to woo Chantelle with an old-fashioned mix tape goes disastrously wrong when Malick gets involved!