The MPU works to track down the kidnapped son of a doctor, butthe case takes a turn when his mother gets in direct contactwith the kidnapper. Meanwhile, Kemi expresses her concerns forSidney's wellbeing to Nikki and Jason.
When an old pal of Torres' comes to him, disheveled andbloodied for guidance amidst an undercover FBI operation andthen disappears, NCIS helps track him down. Also, McGeeprepares to be a contestant on a popular game show
Shaun and Lea soon learn that their surprise pregnancy may alsocome with additional complications. Meanwhile, Doctors Park,Reznick and Allen treat a teen with Gardner's syndrome whosepast surgical history jeopardizes the outcome of his currentone.
Ben finds himself in 2012 in the midst of the Mendéz family asthey help their transgender daughter, Gia, who dreams ofplaying on her high school basketball team. Magic and Jenndiscover another piece of the puzzle of why Ben leapt in thefirst place.
The Lyell team return to the crime scene as another victim isin peril. Family ties are tested to their limits as they revealthe dark secrets that led to the tunnel collapse, and Jack isput in a difficult position when a blast from the past comes tovisit.
Baz and Garrow get closer to understanding their mission whenthey explore the pump control room, and realise they needFulmer to help them - leading to painful consequences forFulmer as he struggles to keep a grip on his sanity. When thecrew's anxieties rise as a glimmer of potential hope turnssour, Magnus finds himself losing his grip as tensions amongstthe group reach fever pitch.
The team returns to the swamp and immediately uncovers moreevidence of a sunken ship; in the money pit, the discovery ofa collapsed structure could mean they have finally located theoff-set chamber.
Kate struggles to market a game-changing yet controversialpill, as Sloane's strategy puts her at odds with an author.While Jenny meets a dead end, Anne meets a new friend in AngerManagement.
The new arrivals on board from the Kinloch Charlie immediatelymake their presence felt, as Pictor head Coake enlists a groupto undermine a weakened Magnus and force their way to the pumpcontrol. But when Coake's motives are investigated and the crewrealise he isn't giving them the full truth, they findthemselves locked in an urgent race for answers with lives atstake.
Scores are settled and mysteries revealed as Coake is pushed toexplain Pictor's plan and the true reason for his missiononboard, Rose and Fulmer work out the horrifying extent ofwhat the coded messages they have discovered really mean, andMagnus must put his personal demons to rest and lead the crewin one final bid for their survival.
Sister Veronica is shaken when a mother reveals a terribletruth about her marriage, whilst Shelagh cares for a baby witha life-threatening condition and Nancy harbours a secret.