Influences Army of Darkness (the scene of Sara working retail is like Ash and his job at S-Mart), the Men In Black movies (the mind-erasing device and the general look of The Time Agents), the play Julius Caesar by William Shakespeare (Caesar quotes a line from it during his speech to the toga party, Nate quotes it when questioning Sara) and the movie Back To The Future II (the heroes have to stop a villain who used a book from the future to change history after allowing said book to wind up in the hands of said villain in the first place.) Goofs It's hard to believe The Legends would just walk around a dinosaur-filled Los Angeles in their civies as nonchalantly as they do in the opening scene.Funny as it is to see Sara working retail and granting that it's done entirely for comedic effect, it seems hard to believe she couldn't have gotten a better job, especially in Star City.Julius Caesar defied this law by crossing The Rubicon, moving southward from Gaul and marching upon Rome. Continuity It has been five years since Rip Hunter last interacted with The Legends from his perspective.
Artistry The fight scenes of Sharpe and Sara working to fight the Roman Centurions is nicely shot.
Trivia Of Tomorrow The episode opens with a quick recap of the last season. The episode title is a pun on The Rubicon - a shallow river in Northern Italy, which Julius Caesar famously crossed in 49 BC.
Ray discovers that Gideon has been in sleep mode for five years when they steal The Waverider. Nate: (to Time Bureau agents) I didn't know Men's Warehouse gave group discounts. Sara's non-verbal reaction and hiding of her face when she sees King Arthur. (Stein sighs cynically.) Jax: Look, we have a time ship! Stein: That's what I told Clarissa the last time I left... King Arthur, last seen in 212, makes an appearance, being dragged through the Star City Time Bureau office in 2017 after having somehow made an appearance during The Spanish Civil War.
He is able to revive her by diverting her power back to the core. (Remember how she was the inspiration for Sir Lancelot? Ray: (cheerfully) And when you came home you had a surprise daughter! The Waverider has been re-purposed as a training simulator for newbie Time Agents.
We are specifically reminded that Rip Hunter left the team, officially naming Sara Lance as Captain of The Waverider, that Amaya elected to stay on the team despite what recorded history says due to her love of Nate Heywood and that the team crash-landed in 2017 Los Angeles after a time-quake, at which point they discovered several buildings out of their proper place... Since then, the phrase "Crossing The Rubicon" has come to refer to "the point of no return" or any action that might be seen as risky or revolutionary with no alternatives but total defeat or complete victory possible as an outcome.