Hiro attempts to delve into Arthur Petrelli’s past to uncover the mystery behind him creating a rival company Pinehearst and his hatred towards Angela. Sylar stricken by guilt tries to stop his murderous ways with HRG and Elle vying for his blood. Meredith’s training goes up in smoke with the arrival of her brother.
The team fights to retake control of Atlantis when Michael infiltrates the control room to take Teyla’s child and destroy the city.
Suddenly at the top of Earl’s list a life-or-death item appears right after a new mysterious man moves in next door. Meanwhile, a science fair has Joy all worked up to the point of obsession. She’ so fixated on winning the fair so she can buy something special with the prize money.
Wyatt gets a taste of his own medicine, and Mahone finds some resolution. T-Bag scrambles when the police investigate his missing co-worker while Gretchen gets cozy with a Company man. Meanwhile, Michael’s condition continues to worsen, and a team member makes the ultimate sacrifice while planning the underground break-in for Scylla.
A serendipitous meeting with someone from his past has Ted thinking about how he would handle running into someone he would prefer to forget.