Donnie called his brothers into his lab to show them something that could help them find Splinter.

Leo: So what is thing Donnie?

Donnie: I'll show you. Take a good look at this.

He showed them what looked like a scanner.

Raph: Are we suppose to clap or hands?

Donnie: This is my new search device. You just put some DNA from the one you wanna find and it shows you the way.

Mickey: Cool.

Leo: Ok now we just need some DNA from Splinter.

Mickey: I'll get it.

He ran to his room and came back with a piece of hair.

Raph: Uh. Mickey where did you get that?

Mickey: Well I might have accidentely gotten gum in his fur. So I had to cut it off.

Raph: And you kept the piece?

Mickey: For memories.

Donnie didn't ask and took the piece of fur and put it into the device. It started to give result.

Donnie: It's working. To the top.

They all ran to the top. Luckely it was night time so they could move freely. But what they didn't know was that someone was stalking them.

The device was showing the way but then it moved.

Donnie: It moved!

Leo: What?

Donnie: The location of master Splinter have moved. And there it did again, and again.

Mickey: Did he get teleporting powers when he shrunk?

Raph hit his head. Just then the saw that the location multiplied and one started to come towards them. They looked around and then saw the one who caused the location. A normal rat.

Leo: It's just a normal rat.

Mickey: Wait maybe master Splinter turned into a normal rat instead.

Donnie: No. My sizechanger can't turn things into other things, just change their size. Splinter's fur being rat and all must have made the tracker locate all rats in New York.

Raph: So what you're saying is that we can't even use his DNA to find him.

Donnie: Sadly so.

Leo: But we won't give up. Let's head back home.

They headed back not noticing that Rahzar had heard everything. He went to Shredder the news.

Rahzar: Master I bring some news about the turtles and their master.

Shredder: Tell me.

Rahzar: Apperantly their master Splinter have been shrunken down and they are looking for him.

Shredder: So he's very voneruble?

He laughed.

Shredder: We gonna find him first, and when we do we make a trap for the turtles and get rid of them all at once.

Rahzar: Good idea master.

They both laughed planning their evil plan and ready to get rid of Splinter and the turtles once and for all.