While tagging after Lauren and Bo in the Fae world, Kenzi becomes deathly ill (and incredibly grossed-out) when she inadvertently eats some toxic human soup at the home of an Aswang - sending Bo and Lauren on a daring undercover mission in search of a cure, at a powerful pharmaceutical company. As Bo and Lauren race to save Kenzi, they are each forced to face their varying control issues – with surprising results – underscoring their growing attraction and the beginning of a possible relationship.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
Bo and Kenzi follow Lauren as she tends to a sick Aswang, a type of Fae that is a carrion eater. Kenzi eats some soup that made the Aswang ill and becomes gravely ill as well. Bo and Lauren attempt to locate the source of the disease, a Basilisk, that is killing the pair before it is too late. Trick sells something precious to him for Kenzi's sake, and Dyson's relationship with Kenzi becomes stronger. Bo also finds that with Lauren's help she has more control over her powers and can feed without killing humans any longer.