Thunder and lightning announced the coming of Thor to the aid of Midgard and the Thunderer brought backup - Ares and Valkyrie were being sent to places they were needed. Skrulls that were gathering to attack Steve and his shiny new friend found themselves on the receiving end of death by lightning frying them to the bone.
He landed beside Steve in time to knock a sedan into a group of them. "I leave Midgard unattended for five minutes and this happens. What wouldst thou do without me?" He looked up and saw the trail of cosmic energy coming from Stark Tower and instantly he knew what was happening. "We need to reach Stark Tower now! The Tesseract is atop the building and as long as it functions they will keep coming. Ares and Valkyrie should be arriving soon, they can aid us in fighting our way through the Skrulls."