Jai Courtney sends 14 everyday Australians on the adventure of a lifetime: a pulse pounding trek to the top of a mountain with a million dollars cash stuffed in their backpacks.

14 hikers have started the adventure of a lifetime to reach The Summit in 14 days - but they're realising not all of them will make it. One hiker has fallen, and they don't have a million dollars anymore.

12 hikers are left on the mountain, and with only 11 days left to get to the summit and claim their cash prize, the group are realising that getting to the top is about a whole lot more than physical endurance.

The group have fallen a day behind, and the remaining 10 members have just 7 days left to get to The Summit with $785,000 left in prize money on their backs.

Jans' taunting of the Mountain's Keeper propels the hikers into a terrifying run for their lives, bringing relationships, trust and morals, all to a dramatic climax.

Sam's betrayal costs the group more than time and money, it leaves them wondering who do they really trust? With the alliances changing, who will be next for the chopping block?

Seven become six, as a double-obstacle with a waterfall at its centre splinters the group, but even bigger forces are at play, with a killer twist turning the game on its head.

As the final 6 close in on the summit, they'll have to overcome death-defying terrain and make some of the toughest decisions yet if they want to make it to the top.

The group is torn between loyalty and strategy as another hiker is voted off the mountain. A massive rocky chasm stands between the final four and the summit.