Ranked #11 of 25 in Season 3•+0.1 vs season avg
While out racing bikes in the woods, Ray and Alex find a recluse who lives in a treehouse. He turns out to be one of the original GC-161 scientists. Vince and Lars learn of the existence of the scientist and Alex, Annie and Ray rescue
Larisa Oleynik
Alex Mack
Meredith Bishop
Annie Mack
Darris Love
Ray Alvarado
Michael Blakley
George Mack
Dorian Lopinto
Barbara Mack
Alexis Fields
Nicole Wilson
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"BMX" is episode 23 of The Secret World of Alex Mack season 3. It scored 7.7/10 from 19 votes, ranking #11 of 25 episodes this season (season average 7.6). It aired on February 25, 1997.