Objectives: Meet with the Rakatan warrior tribe
If you intend to befriend the warrior tribe, head here before you visit with the south beach Rakatans. You'll be given an audience with their solipsistic leader, who's apparently a fan of modern action cinema. The conversation here makes it fairly difficult to actually choose to help the warriors; you have to go through almost the entire conversation tree before you're given the option that you need. If you change your mind about your allegiances while talking, feel free to rebuff The One's advances and let him know that you don't want to attack the priests. He'll get a little angry.
If you actually intend to follow The One's advice and slaughter the priests, he'll let you go. You can start systematically looting the area now for items; the warriors have done a lot of salvage over the years. Head back out to the north beach and talk to warleader Garn, who's standing by the water; he'll speak to you of invisible warriors who have killed his men, and you'll pick up the Invisible Mandalorians side quest.
If, on the other hand, you visit the priest clan and ally yourself with them before heading to the north beach, then the warrior clan here will automatically go hostile to you when you enter this area. You'll need to fight your way to the interior of the enclave in order to achieve your objective.
When you've laid waste to the Rakatans inside the enclave, you'll need to head back to The One's makeshift arena and take him out as well. Unfortunately, he has a little scripted sequence where he waits for your party to enter the arena, then releases the hounds. In this case, the hounds are four baby rancors and a few Rakatan warriors, as well as The One himself. It's a difficult fight, obviously, but not impossible, especially if you have Jolee and Juhani tagging along. As soon as you see everyone go hostile, use Force speed on your Jedi party members, then spread your party out a bit to avoid the grenades that The One starts throwing at you. Afterwards, start systematically taking out the rancors, since they'll be the worst offensive threat you're going to be facing. Make sure everyone in your party teams up on one rancor until it falls, then another, and so on. After the rancors die, the Rakatans are mere clean-up duty.
Once everyone is dead, talk to the priest Rakatan who was inside one of the rancor cages to release him back to his people. You can also find some starship parts in one of the rancor cages.