When the Decepticons start experimenting on Cliffjumper’s body with the fabled Dark Energon, the Autobots pick up the life signal of their lost comrade. They hurry to the site, where they find a huge Energon mine, under Decepticon control.

• Transformers: Prime - Season 1
• Peter Cullen
• Sumalee Montano
• Jeffrey Combs
• David Hartman
• Shaunt Nigoghossian
• Vinton Heuck
• Todd Waterman