*UPDATE* The ninth, tenth, and 11th boy have been rescued from the cave. Still left, one boy and the soccer coach. Plus a medic and three Thai Navy SEALS.
This is not actual footage of the rescue efforts going on in Thailand. This footage is likely very similar to how they're rescuing the boys from the flooded cave. The footage is actually from a French diving rescue from 2008.
Divers are currently working on the third and what they hope is the final mission to free four boys and their soccer coach from a flooded cave in Thailand. The rescue involves 19 divers and may take a little longer than the previous two rescue missions. The first and longest mission took about 11 hours.