Back to the Future Part-1

Celestia and Luna ​​​​​​mysteriously disappear right before the new Summer Sun Celebration, As Twilight Sparkle attempts to figure out what happened to them, the Everfree Forest invades Ponyville.

Featured characters

 * 1) Twilight Sparkle (1)
 * 2) Rainbow Dash (2)
 * 3) Applejack (3)
 * 4) Fluttershy (4)
 * 5) Rarity (5)
 * 6) Pinkie Pie (6)
 * 7) Spike (7)
 * 8) Steamer (8)
 * 9) Special Delivery (9)
 * 10) Celestia (10)
 * 11) Bulkhead (11)
 * 12) Wheeljack (12)
 * 13) Smokescreen (13)
 * 14) Big Mac (14)
 * 15) Sweetie Belle (15)
 * 16) Discord (16)
 * 17) Comet Tail (17)
 * 18) Young Twilight Sparkle (18)
 * 19) Young Rainbow Dash (19)
 * 20) Young Fluttershy (20)
 * 21) Young Applejack (21)
 * 22) Young Pinkie Pie (22)
 * 23) Young Rarity (23)
 * 24) Young Megatron (24)

Voice Actors

 * Bumper Robinson - Steamer and Special Delivery
 * Abby Trott - Young Rainbow Dash
 * Andrea Libman - Fluttershy
 * Ashleigh Ball - Applejack
 * Claire Corlett - Sweetie Belle
 * Frank Todaro - Young Pinkie Pie
 * Jason Marnocha - Young Megatron
 * Kari Wahlgren - Young Rarity
 * Kelly Hu - Rainbow Dash
 * Kevin Michael Richardson - Bulkhead
 * Lana McKissack - Young Applejack
 * Michael Leon Wooley - Big Mac
 * Nicole Sullivan - Young Fluttershy
 * Nolan North - Smokescreen
 * Rene Auberjonois - Wheeljack
 * Rob Paulsen - Comet Tail
 * Shelby Young - Pinkie Pie
 * Tabitha St Germain - Rarity
 * Tara Strong - Twiligth Sparkle
 * Tom Kenny - Spike
 * Venus Terzo - Young Twilight Sparkle