The Episode 3: The Last Place You Look Add-on for Minecraft: Story Mode - A Telltale Games Series has 7 trophies - 3 bronze, 3 silver and 1 gold.
Completed Chapter 6 of Episode 3
Completed Chapter 5 of Episode 3
Completed Chapter 4 of Episode 3
Exhaust your conversation with Reuben
Completed Chapter 3 of Episode 3
Completed Chapter 2 of Episode 3
Completed Chapter 1 of Episode 3