This scenario which requires you to beat the special contest event encounter "The Bear God" which needs to be attacked 6 times in order to be defeated. You can trade 1 health for 1 attack and start with 5 health.
In the beginning your main focus is to get more wood and survivors. You will need some luck in the first few turns so you survivors don't die when you send the looking for resources. Make sure you always take the assegai (spear), cleaver and trap ideas. As for all scenarios, Shelter and especially Fire are very important in order for you to get the cards that you need.
If you end up having too much food towards the end always upgrade your survivors even if you don't need their special ability.