Tempest and Grubber recruited Capper, Celaeno and her crew

Here is how Tempest Shadow and Grubber recruited Capper, Captain Celaeno and her crew in The Overlord's Revenge.

Meanwhile, Tempest and Grubber saw a Sonic Rainboom.

Tempest Shadow: Grubber, look!

Grubber: Wow! Pretty!

Capper: I think we have found our course to see some friends of ours.

Tempest Shadow: They can't be far now, come on.

Grubber: Wait for me!

Capper: Well, this keeps getting better and better.

So, they set a course to where Twilight and her friends were going.

Back with the heroes, they gave their thanks to Celaeno and her crew.

Eris: Thanks, Celaeno, for everything.

Captain Celaeno: No sweat, you guys take care of yourselves.

Rainbow Dash: See ya, you scurvy adventurers!

Nya: Thank you!

Mullet: Good luck!

Boyle: See ya round, Mateys!

Lix Spittle: Bye Bye!

Squabble: (squawks)

Captain Celaeno: Good luck out there, you're all gonna need it!

Just as the pirates left on their freedom journey, they notice another blimp coming their way.

Squabble: (squawks)

Mullet: Air blimp up the starboard bow, Captain!

Captain Celaeno: Brace yourselves, they could be an enemy.

But as Capper shows a peace symbol on the flag, it knew it was an ally.

Lix Spittle: It's a peace symbol!

Boyle: That means they're friends.

Captain Celaeno: Seize and desist.

Tempest Shadow: Captain Celaeno, we need your help. Princess Twilight Sparkle is endanger.

Captain Celaeno: Why should we trust you, Tempest? You were a lieutenant to the Storm King.

Tempest Shadow: I was, until he betrayed me and Grubber.

Grubber: It's true, he banished us for failing out attempt to capture the alicorns.

Capper: And right now, we're forming the resistance against the Storm King and help our friends from Equestria.

Captain Celaeno: What do you have in mind?

Capper: (realizing Rarity's generosity) Y'all just leave that to Tempest Shadow.

Captain Celaeno: Alright, let's go help out our friends!

And so, the crew cheered as Tempest, Grubber and Capper hopped on board their ship.