This is how The Energon find and Cliffjumper's death goes in Darkness Rising Part 1.
[Autobot Cliffjumper drives through the countryside]
Cliffjumper: So there I am on the lookout when out of nowhere these high beams light up my rearview. And then it hits me. I'm illegally parked!
Arcee: Another parking ticket?
Cliffjumper: Better. A tire clamp. Once the cops are gone, I kick it off! You know me. Mess with Cliffjumper...
Arcee: And you get the horns.
Arcee: Some things never change.
Cliffjumper: What can I say? Patrolling for Energon out here is lonesome. Almost makes me miss the Decepticons.
Arcee: Like Equestria's a party. We're alone wherever we travel on this dirt, Cliff.
Cliffjumper: Wait! I'm picking something up.
Arcee: Need back-up?
Cliffjumper: Do I ever need back-up?
[Cliffjumper finds Energon]
Cliffjumper: I just found a whole lot of Energon.
[Suddenly, the Decepticon warship, the Nemesis, appears overhead]
[Cliff transforms and Vehicons drop down]
Cliffjumper: Arcee, about that back-up.
[Transformers Prime: Friendship is Magic]
Cliffjumper: Fair warning boys. I'll put a few dings in you.
[Clifjumper leaps in to attack]
Arcee: (comm) Arcee to Optimus, Cons are back. Cliff might be in deep scrap.
Optimus Prime: Alright, Arcee. Do you have Cliffjumper's signal, Ratchet?
Ratchet: Yes. I am locked on, Optimus. But the team is scattered across the time zones.
Optimus Prime: Arcee, Bulkhead, Bumblebee, Smokescreen, return to base and prepare to Groundbridge to Cliffjumper's coordinates.
[Meanwhile, with Cliff and the Vehicons]
Cliffjumper: You want the horns? You got them.
[One of the Vehicons shoots and the Energon blows up. Up on the Nemesis, Starscream watches]
Starscream: The Energon. It's worthless to me now.
[The Vehicons drag in Cliff]
Cliffjumper: Scream, it's been a while. (coughs) So where's your master?
Starscream: Never mind him! I am my own master.
[Starscream stabs Cliff]
Starscream: Any more questions?
[Cliffjumper slumps to the floor]
Starscream: Clean that up.
[The Vehicons nod]
[The Nemesis flies away as a Groundbridge opens up and Ratchet, Bulkhead, Arcee, Bumblebee, Smokescreen, and Optimus Prime come out with their weapons at the ready]
Optimus Prime: This was an Energon deposit.
Bulkhead: Why would the Cons be surfacing now?
Ratchet: It's the first time we've heard from them in years. What are they up to?
Optimus Prime: If they are scouting for Energon, they may very well be preparing for Megatron's return.
[The Autobots jump down and investigate and Arcee finds one of Cliffjumper's horns]
Arcee: This is one of Cliff's horns.
Optimus Prime: Ratchet can you locate his signal?
[A red spot on Ratchet's arm panel goes blank]
Ratchet: No. Cliffjumper's life signal just went offline.
[Arcee starts to cry as Bumblebee hugs her. Later]
Optimus Prime: Major Malfunction, the Decepticons have eliminated Cliffjumper. We may require assistance.
[Cut to an alleyway in Canterlot]
[We see a police car that is colored black]
[The police car turns its headlights on and starts its engine]
Black Police Car: [Activates siren and drives off fast]
[We see the Autobot symbol on it]
Major Malfunction: Calling all Code Red members. We have a major problem. Report to the Autobot base, immediately.
[We see a montage of Code Red suiting up]
Nighlock: [Puts on his armour, and unsheathes his double bladed swords from his knuckles and then flies off]
Taser: [Her hands cackle with electricity, and she flies off telekinetically at Mach 30]
Red Smoke: [Sheathes her sai and sword, pulls up her mask, then teleports away]
Air Strike: [Puts his metal staff on his back, checks his minigun and his chest missile launcher, then flies off]
Light Ultron: [Sheathes his sword, holsters his gun, and flies off]
Mirage the Illusionist: [Sheathes his knives and turns invisible]
Firestar: [Puts her mask on and her hair in ponytail, then flies off]
Indominus Rex: [Changes from her human form to her true form and runs off]
Quicksilver: [Puts on his running shoes and runs off at full speed]
Bucky Barnes: [Grabs a gun and cocks it]
Sauron: [Activates his wings and flies off]
Deadpool: [Cocks all his guns and sheathes his swords, then teleports away]
General Maximoff: [Sheathes a combat knife, cocks a gun, and rides off on a motorcycle] We're kickin' it at old school!
Gambit: [Packs up all his cards, and gets his staff before hopping into a cab]
Justice: [Puts on his cowl and cape and flies off]
Shark Fleet: [Puts on his metal arm, loads his Harpoon Torpedo Launcher, rides off on his motorcycle]
Blue Eagle: [Pulls up his mask and jumps from Appaloosa to Canterlot in a huge jump]
Archangel: [Changes his wings to metal and flies off]
Wolverine: [Runs through the Everfree Forest]
Ant-Man: [Puts his helmet on and shrinks]
Punisher: [Drives off in his car]
Shadowcat: [Gets on her shock gloves and hitches a ride on a passing train]