Citizens in Peril are characters that are in a dangerous situation or stuck somewhere. For saving them, you are rewarded with a Gold Brick. Some of them can be helped in Story Mode, while others require specific character and/or vehicles with certain abilities in Free Play Mode. Listed below are all of the citizens to find and help in each level.
The Wizard of Oz is stuck in his Hot-Air Balloon that was attacked by the tree that it is now caught in, and can't get down. In order to reach him, you first must use a character and/or gadget with the Ghost Trap Ability to trap a swarm of ghosts. Once you do this, you have to use the Laser Ability to break open the golden LEGO basket and free the Wizard.
Hans Moleman is stuck in a pile of debris barricaded by a bunch of rainbow LEGO bricks. In order to reach him, you must use a character with the Rainbow LEGO Objects Ability to destroy the rainbow LEGO bricks that block the way to the living room. Once there you just need to destroy the debris.
Clara Oswald is trapped in what appears to be a capsule in the first stage of the level. To save her, you first need a character with Fix-It Ability to fix a computer. Once this is done, you need a character with the Boomerang Ability to open the capsule and free her.
Clara Clayton is on an out of control horse (A reference to Back to the Future III) in the first stage of the level. To save her, you need a character or vehicle with Growth Ability to grow a gigantic carrot in order to calm the horse down.
Dana Barrett is trapped in a room on the Titanic (A secret area found after the scene with the Ecto-1. You will need to go left and find a Screwjitzu Switch. Use it to go to a harbor and use the 3starterabilities to make a bell to ring and make a ghost Titanic appear.). To save her you need to use a vehicle with the Time Travel Ability to travel back in time to the 1912 Titanic and use a character or vehicle with Growth Ability to grow a plant. When you return to the present, the giant plant will free Dana.
The Robotron Hero is stuck in a silver LEGO brick wall surrounding the bottom left corner of the Robotron: 2084 stage of the level. To free him, you just need to use a character or vehicle with the Silver LEGO Blowup Ability to blow up the silver wall.
The Scooby Gang (Consisting of Fred, Daphne, and Velma) is stuck on top of a sealed platform in the ground of The Temple, (A secret area which is accessible by using a character or vehicle with the Target Ability to shoot two targets to open The Temple door.). To save the Scooby Gang, you simply need to use a character or vehicle which can perform the Gyrosphere Switches Ability, which will raise a platform with the Scooby Gang members, freeing them.
At Bilbo Baggins' Birthday (A secret area which is accessible as soon as you get to Middle-earth by going left to see a bridge break. Use a character who can fly across the gap and enter a hole.). To save Sam you need a character with the Dig Ability to unearth LEGO bricks, and rebuild them into a lever to lift up the table to free him.
Jacob Pevsner is stuck hanging on the anchor of the Destiny's Bounty (A secret area which is accessible by going to the back of Foundation Prime, you need to destroy a snake and rebuild it into a Screwjitzu Switch,
which needs a character with the Screwjitzu Switches Ability to activate. You can use it to create a rift to the Destiny's Bounty.). You need to pull a handle to pull the anchor, however, you will be attacked by Robo SWATs and the handle will be destroyed. After you defeat them, you need to use a character with the Grapple Ability to finish pulling the anchor up, saving Jacob.
Lorraine Baines is stuck on a giant fish at the Enchantment Under the Sea (A secret area which is accessible during the section where you are plugging in the cables. You need to use a character or vehicle with the Silver LEGO Blowup Ability to blow up a silver cage to reveal the LocateKeystone. You need to use it to summon Homer Simpson in his Mr. Plow truck to destroy a fence.). Once you go through it, you need a character with the Magic Ability to levitate and hit the fish with a stick three times to save her.
Cave Johnson (Core) is stuck in a chamber. To free him, you can obtain Chi from a Chi fountain near the elevator, you will need to use the Portal Gun Ability to reach it. You then need a character with the Chi Ability to activate a nearby Chi altar.
Ralph Wiggum is stranded on a raft in the sea near the shore. To save him, you need a character with the Atlantis Elemental Ability to summon a giant water brick-built Seahorse that will dive into the water, therefore returning Ralph to shore.
Judoon is trapped inside of a vine-like cage in the apocalyptic version of London which requires the Vine Cut Ability to free him. You will then need to follow him over to another area and use the Grapple Ability to reveal a teleporter which will bring him to safety.
The Lumberjack is stuck under a pile of dirt in the Paperboy stage of the level (A secret area which is accessible on the roof of a certain building near the end. You need to use a flying vehicle with the Flight Dock Ability to start a whirlwind. You will then need to go up the whirlwind.). To save him, you need a character with the Dig Ability to unearth LEGO bricks, and rebuild them into an axe to chop down the tree.
Benji Dunn is strapped to the side of a giant bomb. To save him, you need to go to the right side of the CIA Headquarters and use a character with the Drill Ability to drill into a wall to reveal an IMF Disguise Scanner. Use Ethan Hunt to perform his Scan Disguise Ability to disguise as a security guard to disable some lasers. You will then need to use a character with the Magic Ability to send a pair of pliers to free him.
Cinnamon Bun is trapped inside an empty subway train near the Lich boss battle. To save him, you need a character with the Raven Portals Ability to pass through a wall into a subway train which he is trapped in.
Big the Cat is sinking in a giant vat of coffee in the Breakfast Kingdom (A secret area which is accessible during the Labyrinth Zone section. You will need to go the area where you will find the ScaleKeystone activator. Activate the Keystone and stand on the moving platform which leads to the surface where the tunnel on your left will be. Shrink down and travel the tunnel to reach another area with Gold LEGO Objects. Use a character with the Laser Ability to destroy them and rebuild a portal to the secret area.). When inside, you will need characters with the Technology Ability and the Charge Transfer Ability in order to rescue him from the vat of coffee.
When Ralph Wiggum is rescued, it says "Ralph Wiggum Rescued? That's Unpossible". This is likely a reference to what Ralph himself said when Principal Skinner told him that he was failing English in The Simpsons episode "Lisa on Ice", which was "Me fail English? That's unpossible!".