Aboard the Axalon, the Autobots bid farewell to Earth, their 2nd home, and the memory of Optimus Prime. Smokescreen has a new name "Hoist" to fit his new reformatting.'''' The Mini-Cons broadcast a signal to some "friends". Hundreds of glowing, space-travelling Mini-Cons show up to battle the enemy. With the Street Action Team's help, the kids remember their journey through cyberspace and identify the enemy as Unicron!'''' Blurr pilots the ship through an asteroid field and the Decepticon ship attacks. The Autobots and Decepticons head outside to fight, while the Mini-Cons hurry to battlestations.'' Out in space, Megatron is taking out the Autobots (and some Decepticons) with the requiem blaster.'''' Sparkplug heads out with the Matrix, and Perceptor summons the glowing space Mini-Cons with the Mini-Con music. The light beams converge in the Matrix and power Sparkplug to knock down Megatron.'' The glowing energy then takes on form, resurrecting Optimus Prime, who blasts Megatron away.moreless
Response to flying in space: I agree. Something very similar happened in G1 when the writers couldn't make up their minds whether Autobots could fly or not.
Edit
Ok, so in "Mars" someone mentions only Starcream and Jetfire can fly in space. Now EVERYONE can?!
Edit
Optimus's trailer thing tends to just mistically disappear and reappear when he transforms back and forth.
Edit
Although there was mention at the start of the episode that Smokescreen has been renamed Hoist, there are a couple of occasions in this episode where his old name is used.
Edit
Megatron, who had earlier seemed annoyed that Optimus Prime had sacrificed himself, is glad that he's back.
Edit
In the episode Remorse, Hot Shot chose to safeguard the Matrix. Seems Sparkplug (logically) took the job.
Edit