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One Night In Roswell Part 3: Flying Saucer Face-Off! is the first story in by Scooby-Doo #27 DC Comics.
The last chapter of a three-part tale about aliens trying to steal
Dr. Goolunk's flying saucer plans. Were the men in black really aliens? The Mystery Machine is pulled up into the air by a flying saucer!
The Real Roswell Aliens
The "Agents in Black" Aliens
The "Agents In Black" Aliens
They stole Doc Goolunk's secret spaceship plans.
Unnamed theme park buisnessmen as The Real Roswell Aliens and the "Agent In Black" Aliens
They were building a Roswell theme park and were stealing robots and flying saucers (including Doc Goolunk's secret plans for one) to put in their park.