Well based on most of the reviews, my opinion is in the minority, but I thought that Season 1 was by far the best. Subsequent seasons with the Red Forest Cult was nonsense. Stories get convoluted and ridiculous in subsequent seasons. Especially in seasons 3 and 4 they seemed to just make episodes for the purpose of going back in time to specific eras to showcase the Nazis, have Cole dress up like a cowboy in the old West, etc. And the story arch becomes secondary to the comedic attempts. I did like the "Brothers" episode in Season 3. I thought it was particularly well done and the cinematography splendid. Unfortunately, that episode concludes the "bromance" between Cole and Ramse, which I though was the best aspect of the later seasons. And then focus shifts too much on the Cole/Dr. Railly romance. I did enjoy the finale. In fact you can watch season 1, skip seasons 2-4, and watch the finale and you miss nothing of any signicance to the story (the aforementioned "Brothers" episode is worthwhile however).