The fan favourite Tactical Leszek is back and he is going to introduce TakUNdoo, a modern style of self-defense in this Gunfire episode, so get ready to learn a new martials arts discpline if you can grin and bear it... "In the latest episode of your favorite series, Taktyczny Leszek will show you the most important the basics of self-defense. He's fast, tactical and undoubtedly very effective, so who do you get from learn how to just not from him ?!