Vikings plot hole: Fans explain how Rollo could have saved Bjorn, TV & Radio, Showbiz & TV

VIKINGS delivered the most shocking midseason finale yet with fans now fearing the fate of Kattegat

Vikings plot twist: Did Ragnar Lothbrok think Bjorn was Rollo's son?, TV & Radio, Showbiz & TV

Vikings plot hole: Fans spot Floki and Rollo mistake, TV & Radio, Showbiz & TV

Vikings: Was Rollo the father of the real Bjorn Ironside?, TV & Radio, Showbiz & TV

Vikings plot hole: Huge mistake with Rollo's name, TV & Radio, Showbiz & TV

Vikings plot hole: How Bjorn fell victim to huge historical mistake, TV & Radio, Showbiz & TV

Vikings plot holes: Did you spot these blunders before? 5 plot holes you may have missed, TV & Radio, Showbiz & TV

Vikings plot hole: Fans expose huge Jarl Borg mistake, TV & Radio, Showbiz & TV

Vikings plot hole: How Bjorn fell victim to huge historical mistake, TV & Radio, Showbiz & TV

Vikings cast: Who is Peter Franzen? Meet the King Harald Finehair star, TV & Radio, Showbiz & TV

Vikings: Ragnar Lothbrok shouldn't have made it past first season, TV & Radio, Showbiz & TV

Vikings plot hole: Fans spot Floki and Rollo mistake, TV & Radio, Showbiz & TV

Vikings: Was Rollo the father of the real Bjorn Ironside?, TV & Radio, Showbiz & TV