The Tsar Bomba, the most powerful nuclear weapon ever designed and tested, and the largest human-made explosion. It’ll blow your mind! Next we’re off to Mel’s home province to learn about a series of mysterious and as yet unexplained loud booms reported in 1978. We will then meet four people whose attempts to commit insurance fraud could best be described as grizzly. Lastly we will learn about a burgeoning population of hippopotami in Colombia. Colombia? That’s right, you heard me. Colombia.