 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?