Explosive test: Firecrackers vs Lock frozen in Liquid Nitrogen | 5 ways to destroy

We found a lot of chests and boxes, only one question -- is how to open them? Thank God in each of them there will be a hint to reveal the next one.
Enjoy our new experiment video! There are gonna be Liquid Nitrogen, Firecrackers, Gas Torch, Acid, Chains, Guns and Locks Locks Locks!
The biggest lock frost with Liquid Nitrogen and we are gonna break it with Firecracker!
Stay tuned!