Watch Downton Abbey 5x08 H -

: Preparations for Rose and Atticus's big day are underway, but family tensions on both sides threaten to derail the ceremony.

: All six seasons are currently available for streaming on Peacock . Watch Downton Abbey 5x08 H

: Members can access the full series. It is also available via the PBS Masterpiece Channel on Prime. BritBox : This episode is part of the collection on BritBox . : Preparations for Rose and Atticus's big day

This episode is a 70-minute extended special that serves as the season finale (followed by the Christmas Special, "A Moorland Holiday"). Watch Downton Abbey 5x08 H

: Tom makes a heart-wrenching decision regarding his future and his plan to move to Boston.