A friend in need is a friend indeed. But what kind of help does a scientist needs from an old friend?

Aliens, contacting scientist Adam Penner, inform him that they have been on the moon for twenty thousand years, undetected due to their invisibility, and have now decided to annihilate humanity unless all the nations of earth surrender immediately. Sequestered in an impregnable laboratory trying to find the aliens' weakness, Penner, his daughter, a no-nonsense army major and a squeamish scientist are attacked from outside by the aliens, who have occupied the bodies of the recently deceased.

Two ghosts, who were mistakenly branded as traitors during the Revolutionary War, return to 20th century New England to retrieve a letter from George Washington which would prove their innocence.

After experimenting on himself and becoming invisible, scientist Jack Griffin, now aggressive due to the drug's effects, seeks a way to reverse the experiment at any cost.

The owner of a coal mining operation, falsely imprisoned for fratricide, takes a drug to make him invisible, despite its side effect: gradual madness.

Kitty Carroll, an attractive store model, volunteers to become a test subject for a machine that will make her invisible so that she can use her invisibility to exact revenge on her ex-boss.

A fugitive, dangerous madman reaches an English village where he confronts his former partner who left him for dead in the jungle after their discovery of a diamond mine. When the former partner also claims to have since lost the mine and all its wealth, which he took all for himself, and though the partner is still living in a state of luxury , the madman takes up an offer from a crazed scientist to make him invisible, something the scientist has already done with experimental animals, so that he can take revenge.

The Invisible Man's grandson uses his secret formula to spy on Nazi Germany.

When dosed with cosmic rays, four intrepid astronauts are given incredible powers. They decide to form a superhero group called the Fantastic Four to fight their arch-enemy, Dr. Doom.

Legendary, immortal nobleman Baron Munchausen regales a lovestruck woman with tales of his amazing adventures.

After the mysterious death of scientist Dr. Devin Villiers, Det. Frank Turner and his partner are assigned to protect Villiers' colleague, who revealed that a veteran soldier was subjected to an experiment with the objective of creating the ultimate national security weapon... an undetectable soldier. The experiment failed – with disastrous side effects.

Cocky researcher Sebastian Caine is working on a project to make living creatures invisible. Determined to achieve the ultimate breakthrough, Caine pushes his team to move to the next phase — using himself as the subject. The test is a success, but when the process can't be reversed and Caine seems doomed to future without flesh, he starts to turn increasingly dangerous.