(Alyth Ross) is alone in London, active in environmental protests.
: The episode focuses on the immediate separation of the Yeats family: Andy is in the Middle East investigating the oil failure.
: Petro-chemist Andy Yeats (Matthew Fox) discovers a contaminant in the oil supply that renders it useless, effectively stopping global transportation and power.
: Around the 40-minute mark, the "slow burn" of the episode accelerates into a full-scale survival thriller as the energy grid fails and the public begins to panic.