Worth It Part-3

Twilight learns more about Optimus Prime's history on Cybertron while the Autobots continue their battle at the Earth's core.

Featured characters

 * 1) Megatron (1)
 * 2) Optimus Prime (2)
 * 3) Bumblebee (3)
 * 4) Arcee (4)
 * 5) Bulkhead (5)
 * 6) Twilight Sparkle (6)
 * 7) Ratchet (7)
 * 8) Pinkie Pie (8)
 * 9) Applejack (9)
 * 10) Rarity (10)
 * 11) Rainbow Dash (11)
 * 12) Fluttershy (12)
 * 13) Spike (13)
 * 14) Sweetie Belle (14)
 * 15) Apple Bloom (15)
 * 16) Scootaloo (16)
 * 17) Princess Celestia (17)
 * 18) Princess Luna (18)
 * 19) Soundwave (19)
 * 20) Lord Tirek (20)
 * 21) Trigon (21)
 * 22) King Sombra (22)
 * 23) Unicron (23)
 * 24) Airachnid (24)
 * 25) Knockout (25)
 * 26) Breakdown (26)
 * 27) The Shadowbolt Leader (27)

Voice Actors

 * Andrea Libman - Pinkie Pie and Fluttershy
 * Ashleigh Ball - Applejack and Rainbow Dash
 * Cree Summer - Princess Luna and Airachnid
 * Fred Tatasciore - Ratchet and Lord Tirek
 * Kevin Michael Richardson - Bulkhead and Trigon
 * Cathy Cavadini - Scootaloo
 * Crispin Freeman - Breakdown
 * Daran Norris - Knockout
 * Erik Aadahl - Bumblebee
 * Frank Welker - Megatron
 * Grey DeLisle - Arcee
 * Isaac C, Singleton Jr - Soundwave
 * Jessica DiCicco - Apple Bloom
 * John Noble - Unicron
 * Kath Soucie - The Shadowbolt Leader
 * Laura Bailey - Sweetie Belle
 * Nicole Oliver - Princess Celestia
 * Peter Cullen - Optimus Prime
 * Robin Atkin Downes - King Sombra
 * Tabtiha St Germain - Rarity
 * Tara Strong - Twilight Sparkle
 * Tom Kenny - Spike