Back in the 1980s, when the buddy-cop thriller was all the rage, Alien Nation took the genre’s staples and threw a bit of sci-fi into the mix. In a future Los Angeles where extraterrestrials live among humans, an Earth-born cop (James Caan) is reluctantly partnered with an alien law enforcer (Mandy Potenkin); as they solve a case involving murder and narcotics, their antipathy eventually gives way to friendship and respect. It was familiar stuff, even back then, but the sci-fi angle gave it a certain freshness, not to mention a neat (if less than subtle) allegory for racial intolerance and hatred.
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Nearly 30 years later,