Alaska is a big wilderness and like the dad said on the show "It takes some Kahunas to do this"
He also said every man in America would like to be with them on their adventure, and I know I would.
Anyway gettin' gold is not easy even for experienced miners, let alone newbies. They do have some nice equipment but it takes more than heavy equipment to find gold.
I predict they will have lots of troubles just like everyone else.
Unless they strike it rich they will probably make more from the show than off the gold.
But they are motivated and I'm sure if there is any gold on their claim they will find it.
However just to break even on their expenses they will have to find a lot of gold!
I estimate they have at least $250k tied up in mining equipment and transportation so far, not even counting food and supplies for 6 men and 3 boys for the 90 day plus or minus mining season. And I also didn't add in how much they paid for the claim.

They would have to average at least 2 ounces of gold every day seven days a week just to break even and that's if they only have $250k invested.
In case anyone missed the first episode or wants to watch it again here it is in four parts.
Part 1
Part 2
Part 3
Part 4