Men in Black: The Series - Season 1 (1997)

K's mentor Alpha, a renegade agent who combined his body with alien organs, returns to menace K and procure an alien's heart.

Having accidentally disabled an alien diplomat's bodyguard, Jay assumes his identity. Jay must protect the Tarkan Trade Minister from a mysterious, unknown assassin. He knows that only the attractive MiB translator, Vonda, is allowed clear access to the diplomat. But is Vonda really who she seems?

While chasing down an alien chop-shop gang, Kay is accidentally neuralyzed back to being a teenager. A "young", confused Kay almost runs, but realizes Jay is on his side. Kidnapped by the gang, shades of the old Kay reappear when a battle ensues. The chop-shoppers defeated, Kay meets with his father for the first time in years and "renews" his vows with the MiB.

Jay is solely assigned to escort Troy, a Symbiote while Kay is down with an alien virus. As the duo are relentlessly pursued by Buzzard, a savage bounty hunter, and his client, the Symbiote unleashes his amazing powers. Jay is "fatally" wounded in his battle to protect Troy-Kay recovering in the nick of time, preventing the Symbiote from melding with evil. To his surprise, Jay learns that his life was never in any real danger-Symbiotes have healing powers.

MIB finds themselves dealing with an alien called an Inanimate, who is capable of disguising itself as inanimate objects. An intergalactic cop named Eileen arrives and is soon partnered with K, leaving J jealous.

A psychotic alien cab driver, is inexplicably attacking innocent humans and draining them of their vital "life force". While attempting to overtake the disturbed cabbie, Kay is attacked and imbued with the alien's "essence". Psychically bonded to the alien and capable of feeling his pain, Kay refuses an antidote reasoning that his condition will aid in capturing the rogue Alcidian. As the pursuit escalates, Kay identifies more closely with the deranged alien and eventually turns against his fellow agents. It's a life or death situation for their partner; Jay and Elle ...

Someone is messing with MIB's past to make sure they have no future!

L must infiltrate J's dreams and find a way to wake him up after an alien parasite unknowingly brought to Earth by a NASA space shuttle attaches to him and puts him to idyllic sleep while feeding on his brain.

An alien spacecraft is stationed on the outskirts of our galaxy while New York is experiencing a record heat wave. The heat-loving race is tampering with our weather in preparation for an invasion. With the clock ticking and the temperature rising the MiB must discover just how the aliens are modifying our weather.

Prisoners breaks out of MIB, with only Jay and the worms to form a plan.