Amazon did not include Season 1 in its free Prime offerings, but you can easily track the action by starting with Season 2. I thoroughly enjoyed this action series. Hated to turn off the TV at bedtime -- just one more episode. I'm sorry the series ended with Season 4, but I do enjoy Cole Hauser in Yellowstone. Meaghan Rath was a delightful character in Season 4. Be aware that Seasons 1, 2, and 4 have 10 episodes. Season 3 has 20 episodes and is its own separate story.