It was an average day in Petropolis. At D.O.O.M. headquarters, Snaptrap and his henchman were trying to think of a new crime to commit, when someone came down the stairs.

"Hey guys," said a pretty female rat, a lighter gray than Snaptrap and bearing little resemblance to him. Snaptrap and Larry looked up and smiled, "Hey Sissy!" Snaptrap then turned to the rest of the gang, "You guys all remember my little sister, Cecelia?"

Everyone smiled and mumbled hello's. "You got a letter," Cecelia, better known as Sissy, handed an envelope to Snaptrap. Larry, who was sitting next to his boss, got down from his chair and slid it out for his wife to sit (A.N. Larry is Snaptrap's brother-in-law). Sissy sat down, then pulled Larry into her lap.

Snaptrap opened the envelope and pulled out an invitation, remarking that the return label was from the post office and was signed "PR and PR". Then he read aloud from the card.

To the members of D.O.O.M., you are all cordially invited to a dinner party hosted by Las Banditas this Friday night. Dinner will be served at 6:00. Please follow the enclosed directions to the house on the mountain outside of Petropolis. We look forward to meeting you. Signed, Phineus and Philamina Rodentius.

"Finny and Phil!? They're back?!" Sissy squealed excitedly, squeezing Larry.

"It sure sounds like it!" answered Snaptrap, equally excited. The brother and sister explained to the rest of D.O.O.M. that the Rodentius twins had been their best friends as children, before the twins moved away after graduating 8th grade. The twins were loud, excitable, trustworthy, athletic, and Phil had asthma.

"You know, I used to think that I'd marry Phil, and Finny was the only guy in the world good enough for Sissy," Snaptrap added as he looked over at Sissy and Larry, both of whom glared back at him. Sissy was aware of how her brother treated her husband, but was a little afraid to say anything, even though he loved her. He was, after all, the leader of a criminal organization.

"I wonder what's a lass bandit-tass?" Snaptrap said aloud.

"Las Banditas," Francisco corrected, "It's Spanish for 'The Bandits', and the as endings means the group is all girls."

"Spanish?" Larry asked. "Bandits?" Snaptrap and Sissy said in unison as they looked at each other quizzically. "GIRLS?!" the rest of the boys repeated excitedly (A.N. In "Snapnapped", Ollie says "Ladies don't really talk to us.")

After considering a moment, thinking that the Rodentius twins were not really the type to become criminals, Snaptrap waved the invitation in the air as he asked who wanted to go. Every hand, including Sissy's, was raised. "Okay, we're all going," Snaptrap declared. Sissy set Larry down and ran upstairs. "Hey, where ya goin'?" Snaptrap called after her.

"Shopping! It's a dinner party, so we should probably dress up!" Sissy called down. Her brother and husband groaned at the word "shopping", and the rest of the gang snickered at their pain.