This boy was riding a chairlift with his dad when he slipped.
Slowly losing grip, his dad held him as he dangled from the chair.
A man who was going to load in another chair saw this and instantly came to help.
After the chairlift halted, the man grabbed a plastic fence and asked the passersby to help him stretch it, making a safety net below the boy.
Finally, the dad could let go of his son, and people caught him into the net, saving him from falling.