Is Tom out of control?
Tom takes the lead when a baby is rushed in with breathing difficulties, and having previously failed to diagnose a youngster's meningitis, he is determined to be thorough in his examination. But as he undertakes tests without clearance from Zoe, Sam begins to worry about her colleague's state of mind. Will he make a hash of it?
Elsewhere, Tess tries to get to the bottom of a reckless patient's desire to live for the moment, and Louise is determined to get Ash all to herself.
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Patrick McLennan is a London-based journalist and documentary maker who has worked as a writer, sub-editor, digital editor and TV producer in the UK and New Zealand. His CV includes spells as a news producer at the BBC and TVNZ, as well as web editor for Time Inc UK. He has produced TV news and entertainment features on personalities as diverse as Nick Cave, Tom Hardy, Clive James, Jodie Marsh and Kevin Bacon and he co-produced and directed The Ponds, which has screened in UK cinemas, BBC Four and is currently available on Netflix.
An entertainment writer with a diverse taste in TV and film, he lists Seinfeld, The Sopranos, The Chase, The Thick of It and Detectorists among his favourite shows, but steers well clear of most sci-fi.