Guy is determined to get stuck in to his new plans for Holby as CEO, but when he is confronted with familiar faces from his past, will he be able to give up his old ways? Jac is keen to impress the new boss at Holby and Jonny is determined to lighten Jac's load, but is Jonny taking too much? A suspected smuggler is making waves on AAU. Serena is brought in to deal with him, but soon it's not clear who's handling whom.