In the 2280s decade, the Madrid was attached to Starfleet Academy as a training vessel, and was often dispatched on missions full of cadets. On one training voyage in the year 2280, two crewmen on a landing party were attacked by a pack of Denebian slime devils. Fortunately, they were saved by Cadet Dmitri Valtane, who fought the slime devils off with only a stick. (ST video game: Starship Creator)