- Save Tandi from the Raiders.
When you first go to Shady Sands (assuming it is your second time), talk to Seth and Aradesh. You'll find out that Tandi, the daughter of Aradesh, is missing. You'll have to free her from the Raiders.
When you talk to Aradesh, he'll give you a spear. If you want more stuff (two stimpacks actually), you can talk to Razlo and tell him that many people, including yourself, are looking for Tandi. He'll give you two stimpacks. Afterwards, head for the Raider Camp.