Sea of Tranquility

	"Sea of Tranquility"
Production company	Hasbro Studios
Airdate	August 24, 2019 (France); August 30, 2019 (CN app/website); September 7, 2019 (USA)
Animation studio	Boulder Media Studio

To save the Earth from destruction, the Autobots must defeat the Decepticons on the Moon.

Synopsis

Thanks for helping me... pull myself together.

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Characters in italic text appear only in flashbacks.
(Numbers indicate order of appearance.)

Autobots	Decepticons	Humans	Misc
Bumblebee (2) Windblade (5) Optimus Prime (6) Autobot soldiers (7) Prowl (11) Hot Rod (13) Rack'n'Ruin (18) Grimlock (20) Wheeljack (24)	Generic seekers (3) Megatron (4) Shadow Striker (10) Starscream (15) Shockwave (16) Soundwave (17) Acid Storm (21) Decepticon soldiers (19) Slipstream (22) Thundercracker (23)	Cameraman (voice only) (8) Newscaster (voice only) (9) TOP3Weekly (voice only) (12) Military officer (voice only) (14)	AllSpark (1)

The episode begins with Bumblebee recalling himself picking up the AllSpark in "Allspark", via reused footage.
No explanation is given for why Bumblebee has his voice back, though Ratchet repaired his voice box during the Ark's search for the AllSpark, as mentioned in "Fractured," so it's fair to believe he repaired Bee's voice box after Ratchet awoke from stasis, along with the rest of the crew in "Eruption."
Wheeljack claims the Decepticons are using the force field technology he created on Cybertron.

Thundercracker, Acid Storm, Hot Rod, Nova Storm, and Thrust are all credited with their respective voice actors, though all of them have no speaking roles, with the final two having no appearance at all.

During the scene where Megatron promotes Slipstream to Starscream's status, Shadow Striker has her original body.