It really Jumped the Shark
At first, the show was about whether Hitler might have escaped and how he might have done it. While I find it unlikely that he left Berlin 1945 alive, it nonetheless was good for showing people the methods many Nazis used to escape and just how many different individuals, governments, and organizations collaborated with them.
Now, however, after all the utterly unconvincing evidence of his escape they have "unearthed" so far, they have nonetheless somehow concluded that not only did he escape, he did so with secret nuclear technology and plans to destroy NY in order to establish a 4th Reich. WHAT???