Complex sentence: About a month later, Epps and Lennox contact Optimus Prime, Ratchet and Ironhide about aiding them in escorting the remains of the Decepticons to the naval yard, but are spied on by Barricade, who transmitts the information to Starscream.
Split into simpler sentences: About a month later, Epps and Lennox contact Optimus Prime about aiding them in escorting the remains of the Decepticons to the naval yard. They are spied on by Barricade, who transmitts the information to Starscream.