The video explains how bitcoin as an alternative government-control-free currency can flourish.
Mining is also simply explained including block generation and mining difficulty. Inflation control is also explained. The video is a bit out-dated when it comes to some of the facts mentioned like the reward for each block solving and also bitcoin value.
The dark side of using bitcoin is explained and silk road is given as an example. MintChip, a bitcoin clone issued by the Canadian government is also explained.