Justin Bartha reprises his role as Riley Poole in this episode.
Riley Poole mentions the number 47 in this episode. This is a reference to the page number in the President's book of secrets from the second National Treasure movie that the President told Ben Gates to look at when they found the book at the Library of Congress. This means Ben and Riley are still trying to solve the secret of the mysterious page 47.
Riley Poole remarks that he and Ben Gates are working on something for "3,4...15 years", this is a nod to the fact, that the last installment of the National Treasure franchise came out in 2007, and still hasn't had a sequel except for this show. When asked what they've been working on, Riley says, "Let's just say there's 47 reasons to be interested," referencing the "life-altering" information found on page 47 in the Book of Secrets, from the second movie.