Does Ash Catch Lugia?

Ash's Lugia was a Pokémon that Ash caught in a flashback in the beginning of the book, and his sixty-fifth overall.

What episode does Ash catch Lugia?

While trying to rescue the two Lugia from Team Rocket, Ash and friends have been taken prisoner!

Does Ash catch any legendary Pokémon?

Ash helps the legendary Pokémon when they are pursued by members of Team Rocket, but he doesn't catch them because of their role as guardians.