Kristin Wiig hosts with musical guest Dua Lipa.

Chaos comes to Trolberg when the bell system begins to ring every hour, inspiring Hilda and friends to hatch an elaborate scheme to quiet the noise.

Still reeling from her encounter with Henrik, Johanne pays her newly single father a visit. Later, Johanne goes drinking with a co-worker.

The Warners discover an unauthorized version of their show in Russia.

As the group heads for Danibaan, one of them suffers a horrifying injury. With nowhere left to turn, they seek help from a mysterious healer.

A music video audition promises a big break for a lucky few. Shane and Bette flirt with new love interests, but June has a traumatic encounter.

More than five years after the first attack, the police finally make an arrest, setting off a media frenzy and accusations of a botched investigation.

Starvation becomes a very real possibility for the weakened girls. Martha could spare them from that fate, but it would require a sacrifice she's not prepared to make. Flashbacks take us into her past, revealing the childhood trauma that's made it hard for Martha to grow up and rise to difficult challenges. Leah's paranoia about the island escalates to a fever pitch.

Flaín is wants the man who upset the conspiracy. Rodrigo knows it was his grandson, which is why he intends to send him off to Vivar. On the other hand, Ruy resists leaving the King at the expense of Flaín, as he sees the only solution being to end the Count of León's life. When it looks like everything is about to kick off, the Navarre troops turn up at the border and declare war against León.

As all paths converge on Cittàgazze, the mission to find Will's father becomes more pressing. Having survived the balloon crash, Jopari and Lee try to locate the knife bearer, but the Magisterium are in close pursuit. Ruta updates Serafina on Asriel's plans, but Serafina insists her duty is to Lyra. Mary consults the I Ching on her task after bidding goodbye to Angelica and Paola.

Jimmy Carr, Rob Beckett and Katherine Ryan are joined by Tattoo Fixers star Paisley Billings, comedian Josh Jones, Celebs Go Dating's Tom Read Wilson and comedian Kiri Pritchard-McLean.

Father Vergara leaves for Rome to face his painful past. He requests a meeting with the Pope, but he discovers that Santoro is waiting for him too. Meanwhile in Pedraza, someone is about to return from the dead.