MFHS Science Lab: Tyler is up on a lab bench when he comes back to life. Caroline informs him that Klaus is turning him into a hybrid and he's in transition. Becky says, "Don't leave out the hard part, sweets. You'll only survive if your witch is successful. If not, you're pretty much dead." She holds up Caroline's phone which is now showing a countdown clock. "I wonder how she's doing. Tick tock goes the gym clock." Two minutes left.
Corridor: Bonnie tells Matt that as soon as he's feeling better, she's gonna kill him. She still gets to keep the award I gave her earlier, because that was the stupidest ass thing I've seen anyone do on this show. What if Bonnie didn't get there in time? What if the CPR doesn't work? Sometimes, CPR can't save a person. Matt ducks his killing by explaining that his plan worked. He has a message for Bonnie via Vicki, from the witch who put the hybrid curse on Klaus. "She said that Elena shouldn't have survived Klaus's ritual. The hybrids can't transition because Elena is still alive." Bonnie says, "Tyler?" Matt nods. "He's gonna die, isn't he?" Klaus appears out of the blue and says, "I wouldn't be too sure about that. Given the choice -- doppelganger or hybrid -- I go hybrid every time."
Gym: There are 16 seconds left on the clock, now. Stefan tells Elena to run. He begs her, but Elena insists that he fight. The buzzer sounds. Elena tells Stefan she loves him and not to give up. Stefan, who had been struggling down on the floor flies at her. She screams. He latches onto some pole or pipe near the wall and holds himself back. "ELENA RUN. GO!" She takes off, but as soon as she's through the doors, Stefan is after her. Elena runs at her top speed. Stefan Stealth-Salvatores himself into one wall, and then the opposite wall, all in an effort to stop himself. Elena gets through a set of double doors, and turns to watch Stefan fighting so hard even as he is compelled to chase her. When she turns to run again, she runs straight into Klaus for the second time. Klaus chuckles. "We've got to stop meeting like this." Stefan works his way into the cafeteria. When he spies the janitor's cart, he rushes to it, takes a broom, breaks the wooden handle in two and stakes himself in the stomach.