Biggest Adventure Club

The Biggest Adventure Club is a group that consists of the main characters from Thomas & Friends: All Engines Go. The concept was introduced in the first series episode with the same name. Lookout Mountain is the group's clubhouse and main meeting spot.

The group started out with seven members, with more being added as the series progressed.

History
The club was first formed by Thomas, Percy and Carly as The Big Adventure Club when they went to find the Crystal Cave. Not happy at being left out, Sandy and Diesel subsequently formed The Bigger Adventure Club. After Thomas apologised for leaving Sandy and Diesel out, the two groups merged to create the Biggest Adventure Club. At some point off-screen, Nia and Kana also joined the club.

The club later declared Lookout Mountain as their clubhouse after Thomas and Kana followed a rainbow which led to the top of the mountain.

Between the first and second series, Bruno joined the club.

While searching for the source of the strange noises in the Old Mines, the club split up into two groups to search: the Cave Crawlers (Nia, Diesel, Carly and Kana) searched the old mines, while the Lookout Mountaineers (Thomas, Percy, Sandy and Bruno) searched the Lookout Mountain Mines.

Appearances
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Thomas & Friends: All Engines Go

 * Series 1 - The Biggest Adventure Club, Chasing Rainbows, Tyrannosaurus Wrecks, and Goodbye, Ghost-Scaring Machine
 * Series 2 - Tri-and-a-Half-a Lon, Stink Monster, Valentine's Hearts and Salty's Sea Shanty

Specials

 * 2022 - The Mystery of Lookout Mountain

Songs
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 * Series 1 - Chasing Rainbows and Feet, Tailbone, Ribs and Claws
 * The Mystery of Lookout Mountain - Warning: Biggest Adventure Ahead, A Whole New Place and Job to Do

Trivia

 * Bruno is the only member of the club for a few things:
 * The only member not to be an engine.
 * The only member not introduced in the first series.
 * The only male member not to be created by Wilbert Awdry.