When King Shark escapes from an A.R.G.U.S. holding tank, Lyla and Diggle travel to Central City to warn The Flash. King Shark shows up at the West house and attacks Joe, Iris, Wally and Barry.
During a supply run, Rick and Daryl cross paths with a new survivor that reveals a whole new world outside of Alexandria. Meanwhile, Carl recovers from his injury, as Spencer finds closure.
Dean convinces "Castiel", who is still Lucifer, to send him back in time to the last reported sighting of the Hand of God which could be useful as a weapon against Amara. Lucifer sees the potential in getting his hands on this weapon so goes along with it and sends Dean to 1944 to the fated submarine mission that sunk the Hand of God. Meanwhile, continuing his charade with Sam while they wait for Dean's return, Lucifer plans his next move.
Team Arrow uncovers HIVE's plan to take them out for good, leading Lance to wonder if Donna is better off without him and Oliver to consider telling Felicity about his son.
On Earth-2, the team asks for help from an unexpected source to find Zoom's lair, while on Earth-1, Caitlin tries to perfect Velocity-9 so Jay can stop the Geomancer
Jake's life takes a new turn when his friend shows him a time portal to 1963. He then goes back to try and stop the assassination of JFK. Meanwhile, he makes a life of his own in the '60s and nearly gets arrested.
When a terrorist ends up in a coma, a pair of younger FBI agents ask Mulder and Scully for help communicating with the man, resembling them when their adventure first began and reminding them of just how far they have come.
Sam and Dean investigate a set of murders on Valentine's Day and discover they are dealing with an ancient curse. Once kissed by the curse, the person is marked to die.
Oliver receives an offer from Nyssa that is hard to refuse, Meanwhile Thea continues to battle the bloodlust Malcolm steps in to help his daughter, and Laurel has a Heart to Heart talk with Nyssa.
Scully receives bad news about her family while away on a case. Mulder finds a strange paint sample at the crime scene which leads him to the left-handed artist that created the main suspect. This brings back memories to Scully.
This show just keeps getting better. Episode 303 was awesome!
After last weeks episode of Flint’s crew battling the hurricane, it appeared there was little hope for them. This episode felt so hopeless for that ship. Not only is the crew battling dehydration, starvation and no wind, but they also have to deal with a captain that is a few cards short of a deck.
