After a quick, but unsuccessful, attack on our heroes by Team Rocket, the Gible they had met previously with Grandma Wilma has decided to try to find Ash. It appears that the Gible wants to go with Ash! But when Gible starts to play hard to get and won't let Ash catch it, Barry shows up and decides he wants to catch Gible himself!
Team Rocket has decided that Gible would make a perfect gift for the Boss. But before they can snatch the Pokémon, Barry and Ash have a battle to decide who's more skilled. In the process, they send Gible flying off to parts unknown. When Ash hears Gible's distant cries, he sets out to save the Pokémon, taking many dangerous chances in his effort. This endears Gible to Ash, but soon Team Rocket is after Gible again. They catch Gible, but some well-placed Electric-type attacks from Pikachu free Gible from Team Rocket's evil clutches, sending them blasting off one more time!
Gible allows Ash to catch it, and Barry and Ash have a battle on the spot between Empoleon and Gible. Although Empoleon is clearly stronger and takes the victory, Gible shows a lot of courage...and now Ash has a new Pokémon friend! Happily, they set off once again for Daybreak Town and Dawn's next Pokémon Contest.
As Ash and his friends continue to Daybreak Town, site of Dawn's next Pokémon Contest, Team Rocket trails them in a mecha. However, the Gible from the previous episode comes up from underground, right in their path. Team Rocket demands it to move, and though Gible appears to respond, it does nothing. Furious, Meowth tries to attack with the mecha, but Gible quickly devours the machine, leaving only their seats intact before it explodes, blasting them off.
Ash and his friends reach a town and plan to eat. Gible spots them and digs, getting behind Ash and poking his leg. Ash thinks it's Pikachu doing it, but Gible jumps out of the burrow and bites on Ash's head. They recognize the Gible, noticing that it looks happy with Ash. He asks Gible if it wants to join him, and it nods. Ash throws a Poké Ball, but Gible devours it. Ash asks Gible again if it does want to go, but Gible's simple grunts confuse and annoy Ash.
Officer Jenny arrives and Brock is flustered as usual before Croagunk drags him away. Jenny confronts Ash, thinking the Gible is his. Though Ash tries to explain, Gible's grunts make her think it is his. Gible bites Jenny's head before running away. Dawn clarifies that Gible is still a wild Pokémon. Jenny takes them to a park where many objects have been partially devoured, bite marks apparent. Gible shows up and chomps on a bench. Ash tries to scold Gible, but it bites his head again before running away. Ash and Jenny pursue as Barry, riding a bicycle, runs into Ash. Barry and Ash argue about who is at fault before he challenges Ash to a battle. Barry brags that he has six Gym Badges, even though Ash has one more. Although he was originally heading to Sunyshore City, he made a detour to Eterna since there was a free bicycle distribution event, before stopping in Hearthome to reserve a battle with Fantina.
While Barry talked, Gible quickly devoured his new bike, leaving only the rubber tires, infuriating him. Team Rocket watches and wants to steal Gible so their boss can deal with scrap metal. Barry thinks Gible is Ash's, but when Dawn mentions it's wild, Barry makes a move to catch it despite Ash wanting to catch it first. Barry brings out Empoleon, having it launch Drill Peck. Gible dodges before retaliating with Rock Smash, but Empoleon dodges and hits with Steel Wing, following with a Hydro Cannon that sends Gible flying. Ash pursues as Barry realizes his fumble in not catching Gible.
Ash and Pikachu try to locate Gible, finding it clinging to a tree branch on a cliff, struggling not to fall. Ash climbs down, but a rock crumbles and he goes into a free fall. Gible notices and grabs Ash out of the air, struggling to keep both of them from falling. Ash gets up onto a nearby ledge and pulls Gible to safety. Gible bites on his head as Dawn and Brock look down from the top of the cliff. Ash rides on Gible as it races to the top of the cliff. They meet up with Dawn and Brock, but Team Rocket shows up with another mecha and takes Gible, reciting their motto. Gible tries to bite the arm, but it is highly reinforced. The mecha fires smoke to cover their escape. Ash and Pikachu pursue. The mecha reaches a ravine, but manages to jump across. Pikachu jumps onto Ash's shoulder as he sprints, jumping the ravine. He falls short, but manages to grab ahold of the opposite cliff face, climbing to the top. Team Rocket grabs Ash and Pikachu with the mecha as Brock and Dawn catch up, heading to a nearby bridge.
While Team Rocket plans to throw Ash and Pikachu off the cliff, Ash realizes that Gible, being part Ground type, will not be affected by Pikachu's Electric-type attacks, so he orders Pikachu to use Thunderbolt despite him getting hurt. It works since the mecha is not able to block electricity, freeing Ash and Pikachu. Pikachu then frees Gible with an Iron Tail. Meowth tries to activate another mecha ability, but the electric attack terminally damaged the mecha, causing it to disintegrate and blasting them off for good.
Dawn and Brock catch up as Gible shows affection to Ash. Ash asks Gible again if it wants to join, getting an honest response this time. He tosses a Poké Ball, and this time it pulls Gible in, rocking a few times before securing the catch on his newest Pokémon. Ash then brings Gible out as Barry catches up, wanting to catch the Pokémon. Gible bites Barry's head as Dawn explains that Ash originally planned to catch it. Barry then wants to battle Gible with Empoleon to feel better.
Brock oversees the battle as Empoleon launches Drill Peck. Gible tries to counter with Rock Smash, but Empoleon easily pushes Gible back. Both Pokémon repeat their attacks, this time getting a more even match. Gible jumps to dodge a Steel Wing, but it gets hit anyway. When Empoleon uses another Steel Wing, Gible digs to dodge it before following Empoleon and jumping up to hit with Rock Smash, but a Steel Wing tosses Gible back. Empoleon launches Hydro Cannon, which Gible digs to dodge. However, another Hydro Cannon is launched into the hole, flushing Gible out.
Gible then attempts a Draco Meteor without Ash's order, scaring Piplup into hiding behind a tree. The meteor fails and descends towards Empoleon, which it knocks aside, unintentionally into Piplup. Empoleon prepares a Hyper Beam, but Gible fires Dragon Pulse, forcing Empoleon to jump and cancel the Hyper Beam. Gible is exhausted and slumps as Empoleon knocks out Gible with Hyper Beam. Barry wins his first battle against Ash, but Ash doesn't take it harshly, praising Gible anyway and instructing it to listen next time. Barry celebrates his win as he holds up his ticket to challenge Fantina, but Gible bites his hand and eats the ticket.