Unbearable truths emerge as Hanssen faces Gaskell for one last time...

With Gaskell's dastardly invention inside of her, Jac fears for her life - but the only one who can remove this ticking time bomb is the man himself. Can she convince him to try?

Meena throws caution to the wind and outs Gaskell's nefarious deeds, enlisting Essie's help in unravelling his web of lies.

Serena fights chaos on the ward during a hospital inspection as Meena grapples with a momentous decision. Nicky goes all out to impress Mo and prove she deserves her place on Darwin. Hanssen's wounds remain raw as he tries to lock Gaskell and his crimes in the past.