SpongeBob goes to boating school and then continues to crash into two cars, inflating Mrs. Puff every time he continues to crash into an obstacle. Mrs. Puff then inflates so much, she sends the car airborne. SpongeBob then crashes the car into the lighthouse, injuring Mrs. Puff. In the hospital, Doctor Forrest clarifies that Mrs. Puff's inflation sac was popped in the collision and she will not be able to "puff" again. Mrs. Puff has to be tranquilized after she leaps on to SpongeBob and man-handling his nose. SpongeBob then begins to ramble and the doctor tranquilizes him as well. SpongeBob then visits Mrs. Puff with a bouquet of flowers along with the hundreds of other flowers he sent her, which she appears to be allergic to. After forcing her into a wheelchair, he pushes her down the hallway. Doctors are seen sprinting through the hallway with muscular men on the gurneys. SpongeBob stops Dr. Forrest and asked what was going on. He replies the Demolition Derby are about to battle in the hospital room. It appears that they are hitting each other with wheelchairs. Mrs. Puff imagines them smashing into SpongeBob and killing him. Her laughing attracts SpongeBob's attention, and she claims she has a way for him to earn "extra credit". After talking to Captain Lutefisk, she shows him how much damage SpongeBob can do with a boat, though he is just using a steering wheel. Lutefisk says he is perfect for the derby. At the derby, Mrs. Puff is enraged at how SpongeBob is defeating the competitors only by serendipity. She then grabs a tractor and starts chase after SpongeBob, trying to smoosh him. They then collide into the boating school, where Mrs. Puff regains her "puff", then they get crushed by the school.
( ‣ ) Associated production music
( • ) Original music
( ◦ ) SpongeBob music
• ? - Sage Guyton, Jeremy Wakefield [title card/"It's driving test day!"] ‣Horlepiep - Jan Rap ["Let's get this party started."] • ? - Sage Guyton, Jeremy Wakefield ["No, SpongeBob, not again!"] ‣Dramatic Cue (e) - Ronald Hanmer [boat floats up] ‣Synopsis - Frank Harlow [Mrs. Puff in the hospital] ‣Dramatic Impact 5 - Ivor Slaney [Mrs. Puff growls] • ? - Jeremy Wakefield ["That tickles!"] ‣Classic Soap 14 - Dieter Reith [SpongeBob brings Mrs. Puff flowers] ‣A Jolly Jaunt (a) - Dick Stephen Walter ["You need to get out of this stuffy old room."] ‣Big City Sidewalks - Sam Spence ["Clear the way!"] ‣Befuddled Gent - Phillip Green ["Oh, it's nothing serious."] •Monster Wave - Nicolas Carr, Fabian Fernandez, James King [demolition derby casualties] ‣ ? ["Risking their lives for our amusement?"] • ? - Fabian Fernandez [Mrs. Puff's daydream] ‣ ? [Mrs. Puff laughs] ‣ ? ["Yes, hooray indeed."] ‣ ? ["So what do you say, Captain Lutefisk?"] ‣ ? [Lutefisk snaps fingers] ‣ ? [Lutefisk removes one of his shoes] ‣Crazy Mind - Harry Lubin ["Yes, extra credit..."] • ? - Fabian Fernandez [Lutefisk introduces contestants] • ? - Jeremy Wakefield ["Hey, that Squish looks pretty tough."] • ? - Fabian Fernandez [demolition derby begins] • ? - Sage Guyton, Jeremy Wakefield [Cackling Cruiser slams into SpongeBob] ‣ ? ["If you want someone demolished, I guess you have to demolish them yourself."] ‣ ? [Mrs. Puff driving a monster truck] • ? - Jeremy Wakefield [ending]
This episode is hated by many fans and critics, mainly due to Mrs. Puff's dark transformation, as while she was often frustrated with SpongeBob's bad driving, she had never gone so far as to want SpongeBob dead. Also that SpongeBob felt or showed no remorse for what he did.
This is by far Mrs. Puff's darkest role in the series, as she had lost her sanity because of her life-changing accident combined with years of putting up with SpongeBob. In Bumper to Bumper Mrs. Puff gets really angry at SpongeBob for failing the test many times.
This is the second time Mrs. Puff deflates. The first was Pranks A Lot.
Even though she does not like the name Mrs. Huff she uses it in her name in the Demolition Derby.
It is revealed that Squidward has a carrot patch near his house.
This episode was rated PG In Canada.
Captain Lutefisk is a reference to the WWE wrestler Captain Lou.
At the part were SpongeBob is pushing Mrs. Puff down the hall in Mrs. Puff's wheelchair, one of the pictures look similar to the logo used by Apple Inc.
When The Kruncher was driving away from SpongeBob after SpongeBob drove over him, The Kruncher's back fins was missing in that shot. There was another shot that also showed his missing back fin.
Oddly, even though Captain Lutefisk introduced the 4 drivers and SpongeBob, there was another unknown driver that tried to crash SpongeBob along with Blow Torch and Divin' Bell Dale. Those three also drove into another unknown fish that may be also competing in the derby.