Apollo Justice: Ace Attorney Trilogy

This can be Acquired towards the end of the Day 2 Investigation of The Rite of Turnabout, Episode 3 of Spirit of Justice. When examining the Rebel Hideout there's a wall in the background with the Rebels plans, once you've clicked it and gone through the dialogue, the hand icon will tell you you've already seen everything, but if you click again you'll get a secret bit of dialogue. Once that's been finished the achievement should unlock.

If you missed it you can start the episode from the menu at the checkpoint "The Rebel Hideout".