Haruhi designs the SOS logo for the website and asks Kyon to upload it as their website was not being visited by many people.
A girl approaches the SOS brigade when her boyfriend who is also the president of the computer club disappears.Haruhi accepts the case readily and says as it is their first case, she won't charge a fee.They approach the computer president's apartment and find his room empty.Yuki and Koizumi suggest leaving the room to Kyon as they detect closed space there.Haruhi apparently getting bored suggests everyone to leave and says the case will solve by itself. The SOS members except Haruhi secretly come back to the apartment. Surprisingly Mikiru does not detect the closed space in the room the last time she was there with everyone.Yuki transports the club members to a alternative space where they discover an alien life form in the shape of a giant cave cricket.Yuki and Koizumi defeat the alien and rescue the computer club's president.Yuki explains that the SOS image that Haruhi made had awoken the alien from its hibernation.
Kyon wonders that the entire thing was perfectly scripted and concludes that it was Yuki who actually saved them as it was later learned that the computer president never had a girlfriend.