Alien Invasion!

It was an ordinary day for Penny--a young waitress from early 1920s Manhattan--when the coffee pots and stacked plates began to clatter. Outside the window was dozens of flying space crafts whizzing past screaming civilians. Blaster canons igniting the down town scene. The city was in a tizzy! Aliens have come from the future to team up with New York's most dasterdly villains of the time--the devilish mobsters. How will good conqueor this unlikely powerful team?