Phase one is the intensifying of the border incidents that indicate there is something a miss within the Gorn empire.
Phase two is about what SF and SSF do to discover the truth about it.
1. The Federation descide that they need to know exactly what is going on inside the Gorn empire. There is only one thing for it.
A> An Intelligence team is sent into Gron Territiory on a fact finding mission. The operation is expected to take 2 weeks and they are supplied with a small vesssel with cloaking capabilities.
B> Towards the end of the mission they are monitoring a battle between oposing Gorn forces. They are hit by stray weapons fire or debrise and lose control of their ship.
C> The ship limps away. Soon the opposing Gorn leaders realise that a cloaking device might well be within their grasp if they can capture the vessel. The race is on to find it.
D> Having lost communications with the ship SSF is ordered to mount a rescue mission. Retrieve the personel and the technology (or destroy it at all costs).
E> The Intell vessel crash lands on a small Gorn outpost colony on the edge of its border near to the Klingon Border. The crew have to hide survive and avoid the Gorn hunters who happen to like live prey, human is a delicasy.
The above is two plots, one can be done by SSFI and the other by a sim.