Later at night at Mario and Luigi's house which is also they're new plumbing company. Mario starts cooking some spaghetti in the kitchen for him and Luigi for dinner. "So what do you thing is so important about those turtle creatures?" Luigi asked Mario while sitting at the table playing on his phone. "This is gonna be hard to explain but I think they have a secret hidden in that sewer." The Luigi asked Mario "What kind of a secret?" Mario then started explaining "A secret showing where they come from." Mario continues stirring the pasta while talking "So our concern is to get down there and find out where they are coming from." Then, Luigi started getting an idea about his brother is talking about "Mario?" he said. "I think you're onto something." Then, Mario asked Luigi "What do you mean?" Luigi then started to think "I think those turtle creatures are not of this world." Luigi explained "Maybe there is something in the sewer." Mario faces Luigi and starts to accept his suggestion "Then, Let's go find their nest.
Then outside the house, the Koopa Troopas somehow managed to find the Mario Brothers' house and they peak into the window to find the brothers having their spaghetti. "There's our guys." said Red. "Well?" Green asked "Should we go ahead and capture them?" Then Red answered, "No! They just said they're gonna find our nest." Then Red forms an evil grin. "So, we'll show them the way." then Red let out an evil laugh.