Power Rangers S.P.D. plot
In the year 2025, aliens will be welcome on Earth and will live in peace with humanity. This is short-lived, however, when the planet-conquering Emperor Gruumm turns his destructive attention to Earth. When the 'Space Patrol Delta A-Squad', the planet's first line of defense, mysteriously disappears, protection falls into the hands of their replacements, the 'B-Squad Rangers', consisting of Sky, Bridge and Sydney. When two converted thieves Jack and Elizabeth join the team, tensions threaten to tear them apart. As the alien threat grows stronger, the Rangers will have to put their differences aside and spring into action as a unit.