The Event - Episode 1.11 and 1.12 - Short Synopsis

Episode 1.11 - And Then There Were More
While the intelligence community tries to decrypt Thomas's message, he launches a surprise attack; Blake Sterling learns important information about Sleepers.

Episode 1.12 - Inostranka
A politician threatens to reveal information about the Mt. Inostranka detention center on TV; Sean and Leila get a lead on Samantha.

Both episodes air on 7th March 2011

Source: SpoilerTV