MOTIVE - "Ruthless" - "Motive" concludes its exciting season with a double-episode finale event, THURSDAY, AUGUST 29 (8:00-10:00 p.m., ET) on the Walt Disney Television via Getty Images Television Network. In the first part of the telecast, entitled "Ruthless," Detectives Flynn and Vega investigate the murder of an executive assistant and discover an unexpected link between the killer and the victim... a link that threatens to expose an even more deadly secret. (Photo by Carole Segal/Walt Disney Television via Getty Images)