As a black van stopped at a haunted house type mansion, Riff Raff and Mooch took the bound and gagged Sweet Polly and Mr. Whoopee inside. Inside was a huge laboratory, where we see Simon Bar Sinister and Cade waiting for them.
"Did you get it?" Simon asked Riff Raff.
"We sure did, Simon," replied the wolf gangster. "We also got the inventor and Sweet Polly just in case Underdog shows up."
"Excellent," smirked Simon, as Mooch gave him the canister with the Super Ooze inside. "Now we have the ultimate weapon against Underdog, and no one can stop us."
Just then, a flash of red and blue crashed from the roof. The figure was reveled to be Underdog.
"There's no need to fear, Underdog's here," said the superhero. "Let go of Sweet Polly and Mr. Whoopee, you fiends!"
"Get him, boys," ordered Riff Raff to ten gangsters, as they charge towards Underdog.
"Haven't you learned for your mistakes, fool?" Simon said to Riff Raff. "Underdog will finish your men in seconds."
After Simon finished, Underdog did defeat the gangsters in seconds. The canine hero slowly walked towards the villains, ready for a fight.
"What are we going to do, boss?" Cade asked Simon.
Simon just evilly smiled. "This." Simon opened the canister with the Super Ooze, as the black goop comes out and attacks Underdog. "You see, Cade, I help in creating the Super Ooze when me and Whoopee were partners years ago. Now that it's come back to it's true master, Underdog is finished."
Mr. Whoopee got his gag undone and spoke, "Simon, you may have created the Super Ooze with me, but I'm using it for good. And since Underdog is a good guy…"
With that, Underdog broke free of the Super Ooze, and flew right into Simon and Cade, hitting them into a wall with one punch of his fist. Then he grabbed some rope and tied up the villains for the cops.
"That should hold you till the police arrive to take you to jail," said Underdog, as he untied Sweet Polly and Mr. Whoopee.
"Thank you, Underdog," said Sweet Polly, as she turned to Mr. Whoopee. "Sorry about the Super Ooze, Mr. Whoopee."
Mr. Whoopee looked at what was left of his invention shattered on the floor. "I think I can take the remains back to my lab for study."
"You do that, Mr. Whoopee," said Underdog. "I'm going back on patrol." The superhero flew off as he crashed through the roof.
"Come on, Sweet Polly, we better get back to my lab to see if the Super Ooze is alright," said Mr. Whoopee, as Polly nodded in agreement.
After finishing his patrol of Total City for the day, Underdog headed home to get a good night's sleep. He spotted something black on his costume, but the superhero ignored it as he changed back to Shoeshine Boy.
"What a day," he said, as he went to bed. "I'll have to get a good night's sleep after what happened." So, he went to sleep.
While he slept, the black stain on his Underdog costume began to grow and grow, covering the costume completely. After it was done, the black stain came to life and covered Shoeshine Boy completely.
It wasn't a stain at all, but the remains of the Super Ooze. But, what does it want with our hero?
To Be Continued…