Luxray Vision! (Japanese: レントラーの瞳！Rentorar's Eyes!) is the 59th episode of the Diamond & Pearl series, and the 525th episode of the Pokémon anime. It first aired in Japan on December 13, 2007 and in the United States on May 31, 2008.
Hoping to find a place to stay for the night, our heroes visit an imposing manor. Instead, they're almost mistaken for thieves by Marble, a self-proclaimed Super-Duper Ace Detective who's also Officer Jenny's student. Matthew, the manor's owner, received word that the Bandit Beauties Three were coming to steal his treasure, and Marble promised to stop them. Despite her promise, she's secretly worried: her Luxray hasn't obeyed her ever since it evolved, and she thinks it's all because Luxray can't get its Electric-type moves to work.
As for the Bandit Beauties Three, they're none other than Team Rocket. After snatching Matthew's treasure, they try to make a getaway, only to fall into a pit trap! Matthew's manor is chock full of dangerous traps designed to catch thieves, except Pikachu and Luxray also fall down a pit trap while chasing after Team Rocket. Matthew shows Ash a secret passage that leads them to Pikachu and Luxray, but Marble accidentally springs another hidden trap, and this one is deadly!
Luxray uses its keen eyesight to locate the switch that deactivates the trap, much to Marble's delight. Then Team Rocket, busy digging out of the manor's basement, digs their way right into Ash and his friends. Pikachu uses a Thunderbolt that fills Luxray with electrical energy, allowing Luxray to finally use Charge Beam. The two Electric-type Pokémon help defeat Team Rocket, the manor's treasure is returned to its rightful owner, and Marble is once again friends with Luxray.
As Ash and his friends walk into the courtyard of a large manor where they are hoping to spend the night, spotlights suddenly blind them. A blue-haired girl and her Luxray stand atop a rooftop, and Luxray jumps down towards Ash and his friends and attacks Pikachu, something its Trainer clearly did not want yet. Pikachu dodges Luxray's strikes and tries to hide in the bushes, but Luxray's x-ray vision spots Pikachu before using Iron Tail. Luxray's Trainer tries to stop her Pokémon, but it proceeds to use another Iron Tail, which Pikachu blocks with its own Iron Tail. Luxray's Trainer then calls for backup, with six bodyguards quickly surrounding Ash and his friends. They try to seize them, but Pikachu's Thunderbolt stops them cold. Ash and his friends try to convince her that they are not criminals, and the manor's owner, Matthew, steps out and supports them, recognizing them from the Hearthome City Tag Battle Competition. Matthew points out that the increased security is because that crooks, named the Bandit Beauties Three, threatened to steal his Old Charm. When he asked the Officer Jenny from Mahogany Town for assistance, Luxray's Trainer, named Marble, was sent instead.
Ash and his friends decide to help Marble, but Luxray is still demonstrating hostility towards Pikachu. Inside, they set up in front of the vault where the Old Charm is kept. Marble informs them that the bandits will try to steal it at eight o'clock. While they wait, Marble reveals her concern for her Luxray, because it has been unable to use Electricmoves since evolving, causing it to disobey her. When they tried to help Officer Jenny capture a crook, Luxray wasn't able to use Charge Beam, forcing Jenny's Arcanine to stop him, upsetting Luxray. Marble was excited to see Pikachu, hoping to inspire Luxray to regain its ability to use Electric moves. Ash offer to help with some special training, but Marble wants to start with calming Luxray's anger. Outside, Team Rocket, disguised as bodyguards, sneaks into the compound without a problem, revealing that they are the real bandits. Meowth rides on top of Wobbuffet as part of his disguise. All three wonder about what the treasure chest holds as they proceed inside.
The clock reads ten minutes to eight as Team Rocket steps in, saying that they have orders from Matthew to move the Old Charm. Marble is hesitant at first, but Brock sees it as good, since they could fool the thieves. They open the vault, but Dawn almost unmasks them as the disguised bandits. They try to ward it off, mentioning that the bandits are professionals and would be on time, but Brock points out that they could have set the clock back five minutes. Matthew shows up and reveals that he never gave an order to move the Old Charm, unmasking the bandits. Team Rocket activates a bomb and try to escape in their balloon, reciting their motto. Ash has Pikachu use Thunderbolt, but Luxray knocks it aside and tries to land Iron Tail. A mecha arm knocks it back. The balloon proceeds to get away, but when Ash's Staravia uses Quick Attack, Team Rocket fires thrusters to escape. Unfortunately, they puncture the balloon on the castle, sending them crashing down.
At the crash site, Team Rocket tries to get away, but they trigger a pit trap and fall into a tunnel. Ash and his friends arrive and find them gone, but Matthew mentions that they must still be in the area since the exterior is still being watched. Matthew mentions that there are plenty of traps in the area too since they would try to hide treasures. Luxray spots the pit trap near Pikachu and tries to warn it, but Pikachu takes it as hostility and accidentally triggers it. Luxray tries to save Pikachu from falling in, but it falls in too. Matthew stops Ash from going down as he opts to lead them to a safer entrance. While Pikachu and Luxray end up underground, Matthew shows them a staircase behind a fireplace that leads them to the underground complex.
Luxray tries to go ahead without Pikachu, but it triggers a pit trap, almost falling into a pit of spikes. Pikachu saves it by grabbing its tail with its mouth and dragging it up. Luxray thanks Pikachu and drops its hostility. Meanwhile, Marble compliments Ash on how well he and Pikachu work together. Ash mentions that when he first started, Pikachu would not listen to him until he protected Pikachu from Spearow. Ash suggests that Marble should try to maintain a friendship with Luxray outside of her job. Meanwhile, Team Rocket decides to dig their way out of the complex.
Luxray uses its vision to find a hidden passage, with Pikachu racing ahead. Luxray spots a trap, but Pikachu still triggers it. Spikes fly towards them, but Luxray's Iron Tail stops them. Ash and his friends suddenly appear from behind a concealed door, meeting up with the Pokémon. Ash hugs Pikachu as Marble hugs Luxray, with the two becoming friends again. Marble accidentally triggers another trap, causing the door to close and two opposite walls to close in. They try to open the passage as Luxray quickly finds the switch to stop the trap, using Iron Tail to hit the switch and save them.
Team Rocket then tunnels into the chamber with Ash and his friends. Meowth opens the chest and finds the Charm, and though dismayed at the contents, puts it into a safe. Jessie and James send out Seviper and Carnivine to battle, and Seviper uses Poison Tail while Carnivine uses Bite, but Luxray uses Iron Tail to stop both. Pikachu uses Thunderbolt to shock them, while Luxray jumps into them and takes the electricity from the attack, charging up its body. Marble decides to have Luxray try Charge Beam. Seviper and Carnivine try a double Bite attack, but Charge Beam works, stopping them cold. Dawn catches the box with the Charm as Pikachu and Luxray execute a double attack to send Team Rocket blasting out of the underground.
Outside, Luxray uses Thunder Fang to electrify the box and cause it to open, getting the Old Charm back. Matthew thanks them all as Officer Jenny suddenly shows up and confronts Marble about taking the case without authorization. Brock makes his usual moves, but Croagunkshuts him down. Marble apologizes as Jenny compliments her about developing a bond with Luxray. Matthew offers the group a meal to end the day.