Vince's judgment is compromised when a harrowing rescue of two siblings triggers emotional memories of the night his daughter died in a car accident.
An internal investigation is launched after a difficult rescue goes awry and a life is lost.
Lois talks Clark into attending his five-year high-school reunion; Brainiac 5.0 uses a Legion ring to take Clark into the past and the future.
Olivia teams up with Sam Weiss in a desperate race against time.
Logan and Jackson find a link between hybrid attacks; Mitch is questioned by a woman who claims to be Clementine; a new development in Abraham's research puts his family in danger.
