With their Number One missing, the Sparrows take a hostage. Allison makes a painful discovery. Klaus takes Five on an eye-opening road trip.

The episode was rated 7.31 from 1277 votes.

Five chases down Pogo, Viktor and Harlan attempt a transfer of powers, and Diego and Lila venture beyond the wall of the White Buffalo Suite.

The episode was rated 7.44 from 1140 votes.

As people start disappearing in waves, Five and Lila reluctantly team up to solve their time-travel problem. Klaus sees a new side of his father.

The episode was rated 7.46 from 1212 votes.

With the universe collapsing around them, the gang gathers for a day of romance, awkwardness and debauchery at the Hotel Obsidian.

The episode was rated 7.52 from 1147 votes.

After averting a doomsday in Dallas, the Umbrella siblings return to a very different Academy — now ruled by the powerful and hostile Sparrows.

The episode was rated 7.52 from 1394 votes.

Klaus's relationship with death proves more complicated than anyone knew. Viktor finally learns what happened to the Umbrellas' mothers.

The episode was rated 7.54 from 1131 votes.

Luther and Sloane hatch a plan to end the war between the families. Viktor reconnects with someone from the past. Five has an unsettling encounter.

The episode was rated 7.56 from 1163 votes.

Shaken, the family confronts the deadly mysteries of the Hotel Oblivion — and the growing suspicion that their mission is not what it seems.

The episode was rated 7.66 from 1170 votes.

In 1989, Lila digs up one of her mother's secrets. The families join forces to fight the Kugelblitz. Reginald teaches Klaus to harness his powers.

The episode was rated 7.67 from 1151 votes.

Reginald goes all out to convince the children to sign on to his plan. Five tries to recover a drunken memory. Allison has a change of heart.

The episode was rated 7.70 from 1118 votes.