This Doctor Who screencap contains
street, city scene, and urban setting.
There might also be
portcullis, jail, jailhouse, gaol, clink, slammer, poky, pokey, penitentiary, and pen.
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 by zcatz.