Dennis the Menace - S01EP05 All the President's Menace/The Love Rowboat/Wilson the Menace

Dennis and his family visit Mt. Rushmore, which is in the middle of being renovated. Dennis scales the scaffolding in an effort to help out. There he meets an old man holed up in one of the president's nostrils. Dennis wants to help the old man. A chase ensues with the workers trying to catch Dennis. With the old man's help the scaffolding is blown away with dynamite and a fifth face appears on the mount... Dennis goes to the local lake with his parents to do some fishing. He is very happy to get away from Margaret for a few days-however, once at the lake he finds that she is also there on vacation with her parents! She coerces Dennis to row on the lake with her. Once out there, though, they are attacked by a "REAL" lake monster. They row to an island, and while there they encounter pirates, cavemen, erupting volcanos, et al. Fortunately, they discover that they are actually in "Crazyland" - a new amusement park!Dennis hypnotizes Mr. Wilson into being a 9-year old kid again, in order to play with him - but the kid Wilson turns into, is an insufferable brat!