One Shall Fall

« Transformers: Prime ep 23
Production company	Hasbro Studios
Airdate	August 21, 2011
Animation studio	Polygon Pictures

A prophecy predicts dark times ahead.

Featured characters

(Numbers indicate order of appearance.)

Autobots	Decepticons	Humans
Optimus Prime (1) Arcee (2) Bulkhead (3) Ratchet (4) Bumblebee (14)	Megatron (5) Knock Out (6) Vehicons (13) Soundwave (11) Airachnid (12)	Miko Nakadai (7) Raf Esquivel (8) Jack Darby (9) William Fowler (10)

Quotes

"Um, Optimus! You... wanna see something funny?"
"No."

—Jack learns of Optimus Prime's small sense of humour.

"Does he seem to be ... 'losing it'?"
"A bit..."

—Knock Out and Airachnid discuss Megatron's state of mind.

Notes

Animation and technical errors

• When the flying Vehicons arrive to help retrieve the power source from the military base, the Vehicon ground units which stole it in the first place vanish.
• During his fight with Megatron, Optimus goes from perfectly fine to battered and scratched up in seconds.

Continuity notes

• Starscream demonstrated that energon does not agree with human physiology in "Darkness Rising, Part 3" and "Part 4", which Ratchet confirms here.

Transformers references

• Mountainous battlefield, crazy purple flamey lightning storms, prophecies from the Covenant of Primus... Where have we seen this before?

Trivia

• The episode was first broadcast on Canada's Teletoon channel.