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Helen stumbles after finding out the identity of the murderer; when Lukas and Philip disappear, Helen hurries to find them.

Ryan fights to cover his steps. Meanwhile, Helen's dim past returns and threatens her marriage as well as her ability to guard her family.

Ryan flirts with Kamilah to get close to Lukas. As she tracks the murderer, Helen develops a surprising emotional bond with Ryan. Meanwhile, Gabe unveils a link to his wife's mysterious past.

Lukas and Philip finally accept their romance. Helen wants Kamilah's assistance in protecting Lukas after she finds evidence that the cabin shooter is alive and dangerous.

Helen is taken away from her quest for the murder weapon by Kamilah, who needs her assistance in finding a missing Sita. Lukas draws close his dream sponsorship, but securing it may demand an act of betrayal.

In an effort to stop Helen from getting to the bottom of things, Ryan interferes with an autopsy. Philip handles a surprise visit from his mother. Lukas battles with anxiety about the killings.

Ryan tries to close Helen's case. Helen and Gabe's marriage is tried when Philip shares a deep secret. Lukas invents a scandal to bury gay rumors at school.