It Takes You Away
Set in Norway in 2018 , the episode involves the alien time traveller the Thirteenth Doctor ( Jodie Whittaker ) and her companions Graham O'Brien ( Bradley Walsh ) , Ryan Sinclair ( Tosin Cole ) , and Yasmin Khan ( Mandip Gill ) investigating the disappearance of a widower called Erik ( Christian Rubeck ) with the assistance of his daughter , Hanne ( Ellie Wallwork ) . 
<triplet> Thirteenth Doctor <subj> Jodie Whittaker <obj> performer <triplet> Graham O'Brien <subj> Bradley Walsh <obj> performer <triplet> Yasmin Khan <subj> Mandip Gill <obj> performer