Elena enters into damage-control mode with Philip, who has become painfully aware of her romantic history with Clay; and later, breaks Pack law when the Mutts launch a coordinated attack in Toronto and threaten the human she loves.

Jack is hailed a hero after putting away the Tolliver outlaws, and has decided to come back to Coal Valley for good. But his return to town - and to Elizabeth - is unexpectedly complicated by the arrival of gorgeous big-city actress. Meanwhile, Jack has asked Mountie forensic investigator and friend Bill Avery to help Abigail make a case against Gowen and the Pacific Northwest Mining Company regarding the mine explosion.

The Pazzis make their move; Leonardo gambles for the future of Florence; Riario makes progress in his quest for the Book of Leaves.

What was the astronomical reality behind the star that, according to the Gospel of Matthew, guided the Magi to the young Jesus? This episode examines almost 20 centuries of theories, including meteors, novae, supernovae and comets... but is the truth to be found in a combination of astronomy-and astrology? Recent theories suggest that the "star" was the planet Jupiter in a series of conjunctions with other planets, stars and constellations, and that these conjunctions were interpreted by the Magi-astrologers and priests of the Zoroastrian religion-as heralding the birth of the Jewish Messiah.

Siege veteran Cleaver leads Wendy, Fuzz and Prue out of Roger's hostage crisis, but is accidentally shot in the buttock.

Odin comes to the Avengers Tower demanding his son cease his "fun" on Earth and return to Asgard. Thor promises that if he can't prove the good he does on Earth he'll return home forever.

Queen Anne's taking of the waters is cut short when her life is put in mortal danger. Meanwhile, Louis dines with wealthy German banker Count Mellendorf, who is looking for a French match for his beautiful daughter.As the Musketeers try to spirit Anne back to Paris, they're forced to seek refuge in a fortified convent, where Aramis comes face to face with his past. Under siege and fearful for their lives, the Mother Superior and nuns help the Musketeers to defend the convent, but what will they do once they run out of ammunition?.

There is a party held at the Selfridge house with everyone in high spirits. Florian thinks about what he might have done to Miss Mardle as she won't open up to him but she knows that they have no future. Agnes and Victor enjoy a walk into work together as they get ready to tell Harry that they're handing in their notice as they'll be getting married soon. Henri has being given the all clear and he's a free man. Agnes goes to see Henri for one last time.

Amy tries to help Tim as he goes through a mid-life crisis and buys a hot horse instead of a traditional hot car.

Dandy catches an alien that can mimic any creature's appearance. It starts copying Dandy, and then suffers an identity crisis.