Hilde struggles to let the mystery of Richie Fife go, even as a mysterious explosion leads her to new secrets buried in Erie Harbor's past.

A blackout complicates Hilde's investigation. Matt and Bridget discover that Wott Management is not what it seems.

Hilde follows a lead in hopes of saving her grandfather. Matt and Bridget struggle with parenting a newly rebellious Izzy.

Following the money, Hilde is drawn to the most powerful company in Erie Harbor. Someone unexpected comes back into Izzy's life.

The contents of the black box shock Hilde. Matt realizes how much he never knew about his father.

When they venture to a remote island, Hilde and Matt make a troubling discovery in the surrounding lake.

Hilde and her friends face the consequences of their actions. The Liskos try to help Sylvester jog his memory.

As Hilde tries to make amends with Donny and Spoon, Grant closes in. Spirit Week brings up old fears for Izzy.

Tragedy strikes the Lisko family. Hilde loses her paper. Izzy takes a stand.

Matt and Hilde finally get answers. The Liskos struggle to convince the town to join their fight.