The launch begins. Bill Kerman has set out to ensure that Jebediah's sacrifice was not in vain.
The lower SRB explodes, allowing the rocket to launch into the air
Of course, Bill knows better than to stay in the ship. He jumps out, leaving it to complete its mission with no control.
Sadly, the mission is not a success. The Solid Booster S2 is almost completely annihilated on contact with the ground.