In "Operation: B.E.A.C.H. (Boys Enthusiastically Assume Chivalrous Heroics)", at the beach, which Numbuh 1 leaves promptly (he dislikes it), Numbuh 3 is spirited away by the Knights of the Round Towel and taken by them to King Sandy, a miniature monarch within a HUGE sandcastle. Numbuh 4 hears of the kidnapping and goes with Numbuhs 2 and 5 to save her. Meanwhile, however, Sandy falls in love with Numbuh 3 and plans to marry her. All the while, the KND try to interfere with this engagement. In "Operation: U.N.D.E.R.C.O.V.E.R. (Unusual New Defective Eagerly Reveals Coffee Operation's Vital Enemy Relevance)", one of the Delightful Children From the Lane, whose name is Lenny, evidently sides with the KND to sabotage his siblings' offshore coffee-drilling operation... or does he?
—Anonymous