Garadius IV
Garadius IV was the inhabited fourth planet in the Garadius system. 

In 2368, the  was on the way to this planet, when the ship helped a disabled Romulan science ship. After finishing the repairs of the science ship, the Enterprise received a message stating that the diplomatic situation on Garadius IV was deteriorating, and they were needed there as soon as possible. Just before going to warp en route to Garadius IV, which would have destroyed the ship due to the Romulans secretly transferring muons to the dilithium chamber, the ship was saved – by Geordi La Forge and Ro Laren, who had been accidentally "cloaked", thrown out of phase, and once restored told the crew of the Romulan plot. ()

Appendices

Background information 

According to Star Trek: Star Charts (p. 67) and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), the Garadius () system was located in the Beta Quadrant.

Apocrypha 
The events of the Garadius IV mission are referenced in the eBook Absent Enemies.

Garadius 04