This doktor na screencap contains
kabayo nakikipagbangayan, nakikipagbangayan, horse trail, siyahan kabayo, pagsakay sa kabayo, and mount.
There might also be
paghahanda sa paligsahan, steeplechaser, and kabayo.
Basically the story of his three companions, Rose, Martha, and Donna, and how they can never stay with him long, and the Doctor has to let them go. Made sa pamamagitan ng zcatz.