It was evening in Adventure Bay. At Seal Island, Cap'n Turbot was leaving Danny in charge of the lighthouse, while he visit his grandmother. Cap'n Turbot showed Danny around the island before he showing him how the lighthouse works. Ships really needed a bright light at night, so they never crash into rocks. Danny saw 2 whales swimming close by, he thought of a new daring stunt. He would drive his motorbike super fast down the hill, launch high off a ramp looking rock, then extend his glider wings and sail over the whales. After Cap'n Turbot gave him the keys to the lighthouse, he starts to go to his grandmother's house. Danny put the keys down on the light control system for later.
A few hours later, it was nighttime, Danny began to turn on the lighthouse light for ships to see at night. He was amazed to see how the light lights up the water. He pressed a few more buttons to see what else the light can do, and the light changes color. The 2 whales were still swimming by, Danny thought he could use the light to point at them like a spotlight, and he was right. He turned the light all the way up to shine brighter for his whale jump stunt, but as he was going outside, he left the keys, and the lighthouse junction box was going to malfunction. Danny hopped on his motorbike, but before he could do his stunt, the light went out. Then suddenly, there was a freighter approaching Seal Island. Danny couldn't get back inside because the door was locked and he left the keys. So, he began to call the PAW Patrol.
Meanwhile at the Lookout, the pups were playing with their new glow-in-the-dark frisbee. Ryder got Danny's call about his problem, he summons the pups to the Lookout. Marshall was about the catch the frisbee, but he crashed into the other pups after he caught it. After the pups got geared up, Ryder told about the lighthouse turned off, Danny locked outside, and a freighter coming. Their mission is to fix the light and get the freighter away from the rocks. Ryder hired Chase to use his spy tools to get into the lighthouse so they could be able inside, and Zuma to sail out on his hovercraft to warn the freighter's captain to turn away. Ryder and the pups got into their vehicles. As Ryder and Zuma were floating on the water, Chase ejected out of his car and landed on Ryder's ATV. And, off they go to save the freighter.
As the PAW Patrol made to Seal Island, Zuma goes to warn the freighter's captain, while Ryder and Chase go to help Danny. Ryder spotted an open window, Chase used his wall walking boots to climb there, so he could get inside, come downstairs, and open the door for Ryder and Danny. Once they reached the top floor, the light bulb was burned out. Luckily, Danny replaced it with a new one, and the light was back on. The freighter's captain saw the rocks approaching. He turned the ship around, but the steering fin got hit by a rock, the ship turn anymore.
The freighter was heading for the town bridge, it was too big to be stopped in time. Ryder and Chase came by to help Zuma. Ryder called Rubble to head the bridge and stop anyone from going over it. Ryder and Zuma had to turn the ship away. They used their vehicles to push it at maximum power, but it wasn't enough, so Ryder called Rocky to help with his tugboat. Rubble closed the bridge just in time. The ship was almost to the bridge, but Rocky made it on time. All three vehicles pushed the freighter away from the bridge. After the ship was saved, Rocky began to fix the steering fin.
Morning came, and Danny apologizes for ruining the lighthouse. Then, he began to do his new stunt he'd been waiting for. He rode his motorbike fast enough down the hill, launched off the rock, activated his glider wings, glide over the whales, and landed on the Flounder. Cap'n Turbot was back home. He asked Danny what happened, and the episode ends with Danny being splashed by the whales.