Plot hole: The grounder's leader Anya states that the missiles (flares) burned a village to the ground. If this were true, the flares couldn't have flown very far, otherwise that village would have been too far away for the grounders to know about. In a previous episode, when you saw the flares from space, it was obvious the flares traveled hundreds if not thousands of miles away. (00:31:30)
Plot hole: In s04e06 Clarke, Roan and Bellamy are chasing the Azgeda that stole the vehicle with the barrels, killing them all in the process. That leaves 3 drivers for 2 vehicles. S04e07 kicks off with both the rover and the yellow truck re-entering the camp. However, in later shots we see that both Roan and Clarke are at the island and only Bellamy drove home. If so, who drove the yellow truck back home since no other character returned from the island? (00:01:45)
Suggested correction: Different truck. The goal of the mission was to get the fuel (on the yellow truck) to Abby. Early in episode 7 as Clarke and Abby are talking, Clarke mentions that Roan is unloading the fuel. Meaning they still delivered the yellow truck to Abby as intended (minus the empty barrel). So it could not be back at the camp with Bellamy.