To Plea or Not to Plea - S5-E22
Revealing mistake: When Emily calls Varjak's number from the Tony's Pizza receipt, her phone says that it has no service - meaning she should not be capable of making any calls.
Pretty Little Liars (2010)
1 mistake in To Plea or Not to Plea - chronological order
Starring: Lucy Hale, Ashley Benson, Sasha Pieterse, Shay Mitchell
Trivia: The theme song for the show, 'Secret' by The Pierces, was suggested by Ashley Benson.