Neil Sandilands

An operation to catch a businessman who is using acts of terror to manipulate the stock market is compromised, forcing the NCIS team to search for new leads.

While Lexa tries to maintain peace and order within the clans, Clarke uncovers a strange and game-changing truth. Meanwhile, a flashback takes us into the darker chapter of humanity's past.

When a 200-year-old medicine jar shatters in a teenager's palm, she is admitted to the hospital with symptoms closely linked to smallpox; House must make a dangerous decision that puts his life in jeopardy; Wilson and Sam comfort a young patient.

With Barry in the speed force, Iris, Kid Flash, Joe, and Vibe must protect Central City; a powerful armored villain threatens to level the city if the Flash doesn't appear; Cisco decides to break Barry out of the speed force.

In the Season Four finale, Team Flash gets help from a surprising ally in their battle against DeVoe.

When Native American artifact collectors are attacked by a meta who can bring inanimate objects to life, Barry turns to a surprising ally for help; Harry enlists Cisco's help to determine the identity of The Thinker.