Sony's just announced Jak and Daxter: The Lost Frontier for PS2 and PSP .
The duo travel across "mysterious lands" and "take to the sky" in the game, in order to save their planet from destruction.
The Lost Frontier takes up where the original trilogy left off, with the duo striking out on a journey to help their pal Kiera become a sage.
The new game contains five different aircraft in which to battle sky pirates, along with a new weapon called the Gunstaff, which transforms into other weapons.
Expect to see it at retail this fall.
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