It is thought that the series should have ended with the death of Peter Petrelli in the first season, but the fans wanted to see what was happening next, and the producers were happy to do so since the audience was very high. As a result, we had a season 4 completely scrambled without Zachary Quinto. Then the last villain decided to change all of a sudden, so it was a huge waste of time. And don’t even say a word on Heroes Reborn.
4. Game of Thrones
To be honest, last season was lame. But the last episode was like a black hole of fabricated plot lines and motivations of failed characters. So many questions that we will never get answers to, so many unnecessary reversals, it’s just not a great series finale. Visually stunning, but hollow inside.