Details:
Like Team Rocket, the teams are shown engaging in petty crimes before their master plan is revealed. Your first encounter with them is in the Petalburg Woods, where a low level grunt is harassing an employee of the Devon Corporation. The assailant takes flight after you beat them. You are given a Great Ball for your troubles.

Details:
Later you meet the same grunt holding the old man Mr. Briney's Wingull hostage in the Rusturf Tunnel. After beating them and retrieving the Devon Goods, you are introduced to the head of Devon and asked to take them to Slateport City's Captain Stern, along with a Letter to be dropped off to Steven Stone in Granite Cave.

Details:
Next you meet the team in Slateport City, who are at first blocking the way into the Oceanic Museum. Go to the harbour and talk to a man who will tell you to take your Devon Goods to the Oceanic Museum and the members will have migrated inside, where you find them to be giving the good captain a hard time. After you finish off two of the grunts, you will get to meet the team's sinister leader, who will not battle you just yet.

Details:
Your next meeting is in the mysterious Meteor Falls, where you will find the team of your game with one Professor Cozmo, who they have duped into giving them the Meteorite. They will take flight to Mt. Chimney, the local volcano, for more shenanigens. Luckily the opposing team will come to your aid and offer you their support for future meetings.

Details:
Now the teams are taking their plot more seriously and attempting to use the volcano as a means of realising their goals using power drawn from the Meteorite. The other team will show up to help but is still hopelessly outnumbered. However, this gives you the chance to fight your way through grunts to where the leader of your villainous team is at the northernmost point for your first battle encounter with them. First up is their admin, however, who are a cut above the grunts:

Magma Admin Tabitha	Numel	Poochyena	Numel
Battle Type Items	Level 20	Level 20	Level 20
	Attacks: Growl Tackle Ember Magnitude	Attacks: Howl Sand Attack Bite Odor Sleuth	Attacks: Growl Tackle Ember Magnitude
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item

Aqua Admin Matt	Carvanha	Poochyena	Carvanha
Battle Type Items	Level 20	Level 20	Level 20
	Attacks: Bite Rage Focus Energy Scary Face	Attacks: Howl Sand Attack Bite Odor Sleuth	Attacks: Bite Rage Focus Energy Scary Face
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item

Magma Leader Maxie	Mightyena	Golbat	Camerupt
Battle Type Items	Level 24	Level 24	Level 25
	Attacks: Sand Attack Bite Odor Sleuth Roar	Attacks: Supersonic Astonish Bite Wing Attack	Attacks: Magnitude Ember Magnitude Focus Energy
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item

Aqua Leader Archie	Mightyena	Golbat	Sharpedo
Battle Type Items	Level 24	Level 24	Level 25
	Attacks: Sand Attack Bite Odor Sleuth Roar	Attacks: Supersonic Astonish Bite Wing Attack	Attacks: Rage Focus Energy Scary Face Crunch
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item

Details:
The team in your game takes over the Weather Institute on Route 119 and forces all the scientists into a tiny room on the top floor, demanding information on the weather's influence on certain Pokemon. They also will not let you pass the bridge to Fortree City. Defeat these rascals once again to remove them and get a special new Pokemon, Castform.

Magma Admin Courtney	Numel	Mightyena
Battle Type Items	Level 28	Level 28
	Attacks: Tackle Ember Magnitude Focus Energy	Attacks: Bite Odor Sleuth Roar Swagger
	Hold Item: No Item	Hold Item: No Item

Aqua Admin Shelly	Carvanha	Mightyena
Battle Type Items	Level 28	Level 28
	Attacks: Focus Energy Scary Face Crunch Screech	Attacks: Bite Odor Sleuth Roar Swagger
	Hold Item: No Item	Hold Item: No Item

Details:
On your way to Lilycove City you will spot a handful of grunts muttering something about the ethereal Mt. Pyre and take off in that direction. You are to go up there and find out what they're up to, and if you defeat the stationed guards will see their leader steal either the Red Orb (Ruby) or the Blue Orb (Sapphire) from Elite Four Phoebe's grandparents on the top of the mountain. You are given the opposite orb. They take off for Slateport City for what's next.

Details:
There is no battling to be done back at Slateport, but what happens here is essential to the story. In a spectacular entrance, the team of your game steals a submarine off Captain Stern's team and heads back to their hideout in Lilycove City.

If you haven't gone to Slateport yet you will find access impossible to the interior of the base. Likewise, there is a grunt training a pod of Wailmer that prevents you from heading out to the sea unless the Hideout is stormed. Navigate through to the final room of the Hideout (and make sure to find the Master Ball!) to encounter an Admin. After defeating them they proclaim that Maxie or Archie has taken the submarine they stole to underwater near Sootopolis to enact the final stages of his plan. You will require Dive for what's next.

Magma Admin Tabitha	Numel	Mightyena	Camerupt
Battle Type Items	Level 32	Level 32	Level 32
	Attacks: Magnitude Focus Energy Take Down Amnesia	Attacks: Odor Sleuth Roar Swagger Scary Face	Attacks: Magnitude Focus Energy Take Down Amnesia
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item

Aqua Admin Matt	Carvanha	Mightyena	Sharpedo
Battle Type Items	Level 32	Level 32	Level 32
	Attacks: Scary Face Crunch Screech Take Down	Attacks: Odor Sleuth Roar Swagger Scary Face	Attacks: Focus Energy Scary Face Crunch Screech
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item

Details:
After getting Dive and beating the Mossdeep City gym, you must go down deep underwater on Route 128. There you will find the underwater entrance to Seafloor Cavern, where a legendary Pokemon is said to wait. The submarine is parked out near the surface point of the underwater cave, which you must go and explore. Through the rapids and Team grunts you will eventually come to the end of the cave, where the final battle with the Team leader takes place and the nightmare of awakening a brutal weather-controlling legendary Pokemon begins.

Magma Admin Courtney	Camerupt	Mightyena
Battle Type Items	Level 38	Level 38
	Attacks: Take Down Amnesia Rock Slide Earthquake	Attacks: Roar Swagger Scary Face Take Down
	Hold Item: No Item	Hold Item: No Item

Aqua Admin Shelly	Sharpedo	Mightyena
Battle Type Items	Level 38	Level 38
	Attacks: Crunch Screech Slash Taunt	Attacks: Roar Swagger Scary Face Take Down
	Hold Item: No Item	Hold Item: No Item

Magma Leader Maxie	Mightyena	Crobat	Camerupt
Battle Type Items	Level 41	Level 41	Level 43
	Attacks: Roar Swagger Scary Face Take Down	Attacks: Bite Wing Attack Confuse Ray Air Cutter	Attacks: Take Down Amnesia Rock Slide Earthquake
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item

Aqua Leader Archie	Mightyena	Crobat	Sharpedo
Battle Type Items	Level 41	Level 41	Level 43
	Attacks: Roar Swagger Scary Face Take Down	Attacks: Bite Wing Attack Confuse Ray Air Cutter	Attacks: Screech Slash Taunt Swagger
	Hold Item: No Item	Hold Item: No Item	Hold Item: No Item

Next you must go to Sootopolis City and meet up with Steven. Enter the Cave of Origin to commence the encounter with the Legendary Groudon or Kyogre.