Mary-Kate and Ashley in Action Season 1 Episode 16 Catch a Wave ( Air Date 2002-04-20 ) Genre Action & Adventure, Animation, Family category. Overview "On a field trip to the Galapagos Islands, Mary-Kate and Ashley must unravel a mystery involving sea monsters, bubble wrap and fruitcake? But all comes clear when they discover the Shred Squad, up to no good in search of the perfect wave.".