D'Anna holds President Roslin and other Colonials hostage in order to draw out the Final Five from the Colonial fleet. Col. Tigh believes he has the solution to end the standoff.

Location: Earth, The Valiant Date: 2008, 2009 Enemies: The Toclafane, The Master The Series Final. The Earth has been conquered, the Master rules supreme, and the Doctor is his prisoner. Can Martha Jones save the world?

Christian learns that Kimber and Merril are engaged. Escobar continues to have the surgeons do things for him. Liz is sent to Bermuda after being shot in the leg by one of Escobar's people. Sean goes to kill Escobar. Escobar makes a deal with Sean; a new face for their freedom. Christian learns, in the delivery room, that he is not the father of Gina's baby. Julia returns to get the paternity test she had done a while ago. The doctors do surgery on Escobar, and give him the face of a criminal even higher than Gallardo on the Most ...

Meredith, Cristina and Bailey come to Lexie and Sadie's rescue when a routine surgery goes horribly wrong, as Owen and Derek treat a man seriously injured while sleepwalking and Mark comforts the sleepwalker's distraught daughter.

The battle with Ichigo and Amagai comes to a close. Amagai finds out the shocking truth of his father's death.

Dan must face the harsh consequences of his decision to murder Keith as Karen and Haley's pregnancies complicate the lives of Nathan and the graduating seniors of Tree Hill High. Lucas wrestles with his post-high school options, and Peyton and Brooke prepare to spend the summer in Los Angeles together.