So, "Valhalla" was the title of the last CM episode and I have tried to find out the meaning of the word "Valhalla" but I'm not having any luck. Does anyone know what it means?

'In Scandinavian mythology, Valhalla (anglicized from Old Norse Valhǫllr "hall of the slain"[1]) is a majestic, enormous hall located in Asgard, ruled over by the god Odin. Chosen by Odin, half of those that die in combat travel to Valhalla upon death, led by valkyries, while the other half go to the goddess Freyja's field Fólkvangr.'

- Wikipedia ;)

Adding to the previous responding, which was very good, Valhalla is the viking's equivalent of Christian's paradise, or Garden of Eden.

In that scif meeting in that episode Morgan said :''it is also a ship famous for it's journey, from Dublin to America.''