Team Flash has clearly lerned no lesson from the past 99 episodes.
The Flash episode 508, “What’s Past is Prologue,” will see Barry and Nore possibly time traveling. Yes, because that always ends well for them.
TOM CAVANAGH DIRECTS THE 100TH EPISODE — In the 100th episode, Barry (Grant Gustin) and Team Flash come up with a plan to stop Cicada (Chris Klein). However, the plan calls for Barry and Nora (Jessica Parker Kennedy) to travel back in time to gather some key necessities. However, Barry hesitates, concerned about his daughter seeing certain parts of his life. Meanwhile, Sherloque (Tom Cavanagh) takes his concerns about Nora to Iris (Candice Patton), and Caitlin (Danielle Panabaker) turns up a key asset in the fight against Cicada.
The Flash episode 508 airs on Dec. 4, 2018.