Jak hasn't talked with Damas in a while. Returning to that him, the King of Spargus city has a heartfelt lecture to Jak about protecting his city and preserving its hope for him. He explain to Jak about taking his destiny to his own hands, including living beyond their world's inevitable end.
Damas was once a father. He had a lot his son long ago...
For now, Damas needed Jak to take down some Marauder patrols that are trying to tear down Spargus's gate towards the Wastelands.
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There will be 13 catapaults to take down. Take too long, and they'll leep launching molten rocks at the gate. There will also be some flaming cars rolling into crash themselves into the gate. Take those out, too.
Destroy all of the Maraudaer catapults to get another rare artifact: The Beam Generator.
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Seem will then chime in to tell you about a Marauder stronghold. Those barbarians have stolen away another artifact from the Monks, so you gotta reach their stronghold and get it back.
5:10 - HAHAHAHA! HOW?!
You will need the Dune Hopper to jump over some gaps to get inside the fortress. One you're in, you're gonna get ambushed and will have to take out 60 Marauders on foot.
When you're done with that, they will drop their bridges and have some of them escape in their cars. You'll then have to hunt them down with yours. For the first three of these cars, you have to kill them within a time limit. For the fourth and final one, you can't let him get too far away, or the mission fails.
"Hunt and destroy, baby! Hunt and destroy!"
Win this mission, and you win Seem's artifact: The Prism.
At this point, Samus will need you to go back to that pillar in South Haven Forest to see if you can make all of these rare artifacts work with it.