Called to Starbase 13, the Enterprise quickly gets embroiled in a fight. At first simply following orders, Pike soon finds out that the raiders he just drove off weren't attacking Starbase 13, per se, but rather trying to gain control of what the crew of the starbase have recently found. Their teams have stumbled across a huge vein of dilithium--so naturally it's attracting the attention of anyone with a starship.
No sooner has he figured all this out, though, does Pike have to face off with a more formidable foe. The Klingons have figured out what's going on at Starbase 13, and Commander Kaaj has now come to collect, Neutral Zone be damned!