At the crack of dawn, SpongeBob hollers when his shell phone rings. He answers the phone and Sandy asks if he can come to her science presentation tonight and SpongeBob, without hesitation, says he will be there. SpongeBob then goes to work. When he makes it to the Krusty Krab, Mr. Krabs struggles to fix his telescope and asks SpongeBob if he could go to his house and fix it tonight because his employee report card isn't filled, the only blank thing was "Does a Laborious Task with Supervision."
After a while, Patrick sneaks into the kitchen. SpongeBob then sees him and greets him. Patrick finally tells SpongeBob to come to his birthday party and it will be tonight just like the other two requests he got. At 6:00 P.M., the Krusty Krab is closing, and SpongeBob is leaving the Krusty Krab and goes to Sandy's Treedome first to look at the presentation and what is happening so far. He tells Sandy he needs to do something before he could assist her. He goes to Mr. Krabs' house and SpongeBob discovers that he needs a Motorized Hex Drill in the manual. He goes to "Tom's Toolery" but it is closed due to Porpoise Day. On his way, he bumps into Patrick and sees him with a bag of party hats.
He then goes to Patrick's house. He forgets to buy a gift, after Patrick announces that he could put a present at the present table. He goes back to Sandy's Treedome and gets the Motorized Hex Drill. Then Sandy starts the program. She says that this invention may change modern science forever (eternity). Sandy then requests SpongeBob to remove all his clothes and wear a cyan gown. He then notices the drill is stuffed inside his gown and goes to Patrick and leaves the cake he bought earlier. He then pulls out the Motorized Hex Drill and rips a piece of cloth from the cyan gown and wraps it. He goes back to Sandy and goes inside the invention Sandy made. But he decided to just continue the program. Once inside, he is requested to take off the gown, leaving him nude all night.
Then he asks Sandy a favor. He then goes to Mr. Krabs, naked. Mr. Krabs asks SpongeBob why he does not have clothes. SpongeBob said that it is because he was "attacked by a bunch of sardines" and assembles the telescope, in a fast mood. Then Mr. Krabs stops him and SpongeBob goes back to Patrick. Mr. Krabs follows behind SpongeBob. Patrick notices that SpongeBob's clothes are gone. He asked to borrow the drill but Patrick refuses. So Patrick chases after SpongeBob too. SpongeBob led them to the treedome. Sandy then scolds SpongeBob. Then Mr. Krabs and Patrick scold him too.
Finally, SpongeBob tells the truth that he is overbooked. SpongeBob then follows Sandy as she was the first to call him. SpongeBob then clones himself inside the machine Sandy invented. He is cloned. The two other clones are naked, along with the true SpongeBob, who is now asleep as the episode ends.
The cake SpongeBob got for Patrick has icing that says "Sorry about the scabies." Scabies is a skin disease in humans where mites burrow into the skin and cause a rash that is similar to animals with fur. In this case, scabies is an STD to those in Bikini Bottom, like it would be in the human world. You can learn more about it here.
According to Casey Alexander's Twitter feed, the scabies joke was based on his experience with it at the age of 10.
"I'm allowed to make the scabies joke 'cause it comes from personal experience. My 10 year old self was delighted w/ that one." - Casey Alexander's Twitter
According to this episode, Patrick's birthday is February 26.
The three events SpongeBob had to attend for his friends:
Help Sandy present to scientists her new invention. (a clone maker)
Help Mr. Krabs build a telescope.
Attend Patrick's birthday party.
This episode implies that Mr. Krabs might have an interest with astrology, as he wanted SpongeBob to help him build a telescope. Of course, he might have just wanted to use it to find stars and other life planets from far away.
According to the episode, workers in Bikini Bottom are given "employee report cards" during special times of the year, and if they don't have all necessary requirements marked off, they are fired from their current job. This became important in this episode, as SpongeBob had to help Mr. Krabs build a telescope, as he didn't cross off, "Does a Laborious Task for Supervisor" yet.
SpongeBob's slightly high intelligence is shown in this episode, as Mr. Krabs wanted SpongeBob to help him (and building a telescope can be very puzzling), and SpongeBob was able to read a big "Telescope Assembly Manual" in one day, while cooking Krabby Patties.
In Indonesia, the episode is usually started when SpongeBob says "I won't let Sandy down!" several times.
The store called "Tom's Toolery" is a play on the phrase "Tom Foolery."
When SpongeBob puts his hand on his head, it's on front of his head. When SpongeBob leans back, his hand is on top of his head, but when he leans forward, it's in front of his head again.
The Tom's Toolery sign says please 'Call' again. How can you call if you are coming into the shop?
When SpongeBob falls asleep at the very end of the episode, his hand is inside his water helmet.
If you look closely, when SpongeBob is naked, his legs have tan lines on them.
If you look closely, on the sign that's on the door of Tom's Toolery, it says that they are closed for a week because of Porpoise Day. In real life, stores would only be closed for a day on a special holiday (Easter, Halloween, Christmas, etc.)
When SpongeBob first enters Patrick's rock house (with the drill), his left hand gets stuck between the wall and floor, as if the rock closed on him, implying that the rock was hollow and they were inside it, even though the walls were straight, and in every other episode, the rock is solid.
When SpongeBob goes into Patrick's house, with the drill, they are standing on bare ground before the rock shuts, but when they show SpongeBob inside Patrick's house, he has his hand stuck between the wall and the floor, where the door had been a few seconds earlier.
When SpongeBob uses the piece of gown he was wearing, for Sandy's experiment, to wrap the drill, there is a spot where SpongeBob tore the gown, but in the next scene, the gown looks normal.
When SpongeBob is inside Sandy's treedome, bubbles accompany his fast actions even though there is no water in there.
When Patrick came into the Krusty Krab, SpongeBob took the patty that landed on his head, in his pants. In the next shot, it was gone.
In this episode, Mr. Krabs kept his first dollar in a jar, but in "Wet Painters" and "Friend or Foe?," he has it on a picture frame, and in most other episodes, he keeps it in a safe, along with the secret formula.
Sandy says her device can give the person the productivity of up to 8 workers but the knob only goes up to three. So she should've said it gives the person the productivity of up to four workers.
When Patrick's house opens, his party hat is red; in the next scene, his party hat changes to purple.