Nathan Drake , along with Laura Fisher, there to record the events for a documentary, and Victor Sullivan ( Sully ) Nathans Mentor throughout life due to Nate losing his parents at a young age. They are on a quest to find Sir Francis’ Drakes coffin which treasures nothing but his notebook, which Nathan ( Nate ) is certain that inside hides a way to El Dorado The City Of Gold. He also convinced that Sir Francis faked his death and that Sir Francis is his ancestor and wants to finish of the quest Which Francis couldn’t. The first setting is on a boat in the Pacific where Laura and Nate are getting ready to dive down into the depths of the ocean hoping to find any clues that their rival Zoran Lazeravic’ and his men haven’t had a head start on the quest to find Sir Francis’ notebook. However before Nathan and Laura could reach the water, scurvy pirates attack their boat . Luckily Sully flys over in his sea plane and rescues the two youngsters. They travel to their base located south of the Pacific. As soon as they arrive the 3 receive an urgent call from Lazaravic’ saying he is on his way and no one can stop him. Nate knows he isn’t lying, filthy Russian vet. Turned on his own country and tried to take control. Well that didn’t work out he went on to treasure hunting. This is where he met Nathan Drake. Friends at first , started to treasure hunt all over the world, they were like a fortune seeking duo. However when Drake got the plans for the biggest quest of their careers ( Sir Francis Drake and the lost soul ) Lazaravic’ turned and fled with the plans. Laura is an old friend from school, and sully met Nathan when he tried to retrieve an artefact from a Greek museum about 10 years back when Nate was 14. The guards chased him out onto the cobble streets. Nate saw Sullivan , he knew in his head he was running out of money to survive. So being a smart but risk taking teenager he successfully picked Victor’s wallet. Nate checked the wallet and grinned to himself in satisfaction. As soon as he turned the corner sully was already waiting there for the boy. “That was good kid, but you still have a lot to learn”. Sully explained in a cocky tone. From their on sully mentored Nate as he was his own child.