Season 26 Episodes17
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Ranked #9 of 11 in Season 26•−0.8 vs season avg
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"Secret of Lost Valley (1)" is episode 15 of The Wonderful World of Disney season 26. It scored 6.9/10 from 29 votes, ranking #9 of 11 episodes this season (season average 7.7). It aired on April 27, 1980.