The war with Dyad is all but lost when Rachel’s latest ploy forces a broken Sarah to concede.
Cosima takes a turn for the worse, forcing Sarah to take desperate action – with tragic consequences for those she loves.
A new player in the clone conspiracy turns up at Felix’s door, sending him into crisis mode.
When a rehab confidante betrays Alison and threatens to expose the truth about Aynsley’s death, she goes into free fall on the eve of Family Day.
Sarah joins forces with an unlikely and untrustworthy ally, following a trail of clues that she hopes will lead her to the origins of the clone experiment.
Rachel goes on the warpath, lashing out at Sarah’s nearest and dearest.
Sarah comes home to look for answers. With Cosima’s help, she digs into the origins of the clone experiment.
After hitting the road with Felix, Sarah is forced to turn to a ghost from her past – an old flame named, Cal Morison.
Alison struggles with Aynsley’s death and Cosima grapples with the worsening symptoms of her mysterious sickness.
In the season premiere, Sarah is out of options, on the run, and pursued by deadly adversaries.
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