months (from her companions' perspective) stuck in an alien prison, Yaz is the only one of the trio most focused on the idea that the Doctor will return whereas Graham and Ryan eventually come to accept the idea that they need to move on. But they come to share footage of Robertson having been filmed with a Dalek. When the Doctor eventually returns, thanks to Jack Harkness, the group fills her in about the return of the Daleks. On a side mission to Japan, Jack assures Yaz that, while it hurts to move on from life with the Doctor, it is worth the pain. When the crisis concludes, Ryan and Graham decide to remain on Earth to focus on rebuilding their own relationship and to safeguard Earth in the Doctor's absence, but Yaz decides to continue travelling with the Doctor. In "The Halloween Apocalypse", the Doctor and Yaz are pursuing Karvanista, a mysterious figure from the Doctor's past. Yaz is frustrated by the Doctor's cagey and secretive behaviour. Their path crosses with Dan Lewis, an unemployed charity volunteer and amateur historian from 21st century Liverpool who has been kidnapped by Karvanista; the newly-formed trio fight back when the universe is decimated by the Flux. In "Village of the Angels", Yaz and Dan are transported back in time to 1901 by the Weeping Angels. They travel the globe for three years in "Survivors of the Flux", eventually finding a way to return to the present day in 1904 Liverpool. Yaz and Dan reunite with the Doctor to defeat the Flux and he joins them to travel in the TARDIS in "The Vanquishers" and the Doctor promises to finally open up to Yaz explaining everything troubling her. In "Eve of the Daleks", Yaz confesses to Dan that she has romantic feelings for the Doctor but doesn't know how to express them. Yaz also later admits her feelings in "Eve of the Daleks". The Doctor confronts Yaz about them in "Legend of the Sea Devils", saying she reciprocated Yaz's affection while refusing to become involved with another human companion who will one day die. In "The Power of the Doctor", Yaz assists the Doctor on the bullet train before helping save the Doctor from the Master after he steals her body. Yaz forces the Master out of the TARDIS after he hijacks it and Yaz recruits Vinder to help save the Doctor after