Men in Black II (2002)
Five years after joining the Men in Black, Agent J has risen to become the organization's top agent while Agent L as his partner. J's mentor, K, is enjoying a peaceful retirement at his Texas ranch with his wife Elizbeth, but is gradually has his memories reawaken after he discovers a secret cache of his old weapons.
Elsewhere, Serleena, a feared alien tyrantess, arrives on Earth looking for the Light of Zartha, a powerful alien weapon she had attempted to recover thirty years before from K. She interrogates Ben, a Zarthan incognito who operates a pizzeria on the location of the Light, but is forced to kill him. J fnds out about the murder by talking with Laura Vasquez, one of Ben's waitresses. Based on her information and on K's prior involvement, MIB head Zed orders J and L to to find K before Serleena can.
Serleena arrrives at K's ranch and kills Elizabeth before disguising herself. She tries to get K to remember the location of the light, but J and Laura arrive and try to stop her. Serleena seemingly escapes, and tthe trio of MIB agents decide to bring K to MIB's Texas headquarters in order to restore his memories. However, Serleena as secretly brainwashed him.
K's memories are restored, and he reveals that the clues to the light are back in New York. However, Serleena's brainwashing kicks in as she and her henchmen storm the building. K then tries to kill J and L, though they escape back to New York. Having learned from K that the clues are in New York, they start looking for clues. Back at MIB HQ, Serleena, disguising herself as L, arrives with K and takes over the building. J, and L then pick up Laura and based on clues that K left at the pizzeria, assume that the light may be at Jack Jeeb's pawnshop.
The trio arrive at Jeebs' shop and try to recover the Light, and manage to find a ring that K left behind. Upon finding a hidden compartment within, they discover a photo of K at the Statue of Liberty alongside Lauranna, the Queen of Zartha. But before they can act on the information, K leads a hit squad to recover the ring. In the crossfire, Laura and L are captured, but J escapes with the ring.
Later on, J is contacted by Serleena, who offers to trade the lives of K, L, Zed, Laura, and the rest of the the MIB agents in exchange for the ring. J seemingly agrees to a trade but co-opts the Worms, a quartet of friendly aliens hide in order to ambush Serleena. The exhcange takes place at MIB HQ, but the worms miss a shot and a shootout occurs in the building. During the fighting, J notices that K's memory is gradually returning. J manages to neuralyze his old partner, with all of his memories restored. K then reveals that the Light is actually on Laura's bracelet and that Lauranna had left an escape craft at the Statue of Liberty.
J, K, and Laura attempt to flee via their MIB jetcar, with Serleena in hot pursuit. L and Zed meanwhile try to stop a fusion core meltdown at headquarters from occurring and thus destroying the city. J manages to lure Serleena into being eaten by Jeff, an alien worm in the New York City subway. The trio then arrive at the Statue of Liberty, where K reveals that the Light is actually Laura herself - who is actually his and Lauranna's daughter. The ship is located on Lady Liberty's torch, but Serleena arrives in her true form in a final attempt to retrieve the light. After an extended battle on the statue, Laura manages to get onboard the ship before K and J destroy Serleena. Back at MIB HQ, Z and L manage to stop the core meltdown, thus saving the city. K then activates a giant neuralyzer on the Empire State Building to erase the city's memory of the battle.
Later, J, K, L, and Zed place flowers on Elizabeth's grave, which K had arranged to be beside Lauranna's. K feels remorseful for having lost both of the women he loved, while J seems regretful over having to say farewell to Laura. To cheer him up, K says that at least they both know that Laura will be safe, and assures him that she will be fine. J agrees, and resumes work at MIB with K and L as his new partners. Elsewhere, Laura arrives on Zartha and transforms into a being of pure light as she is welcomed home.
NOTE
The movie is based of the Men in Black: Retribution comic, with dashes of the OTL version sprinkled. As a primer, in that story, Edgar the Bug's offspring hatches and ends up rampaging across Texas. Kay's memory's spontaneously reawakens (although fragmented), and as such he teams up with Jay and Elle to defeat Edgar's offspring... who turn out to be more than just that one baby bug.