Monarch: Legacy of Monsters

Character Cate Randa is shown in a relationship with Dani, a fellow teacher, who discusses moving in together. It is later revealed that Cate cheated on Dani with another woman prior to G-Day. Additionally, parental reviews explicitly mention "one scene involves two women lying in bed and an implied lesbian relationship".

Oversized beasts kill people, and not even children are safe, with a school bus full of children plummeting to their deaths off-screen during Godzilla's clash in San Francisco. A Frost Vark kills character Du-Ho and destroys his plane in Alaska. An Ion Dragon kills Shaw's team during an expedition into the Hollow Earth. Godzilla is depicted in epic battles against other Titans, such as the Ion Dragon, which involves atomic breath attacks and visible savagery.

Parental reviews note "Several scenes of characters lying (covered) naked in bed after presumably having sex". The narrative also includes themes of adultery and infidelity, as Cate discovers her father Hiroshi had a secret second family, implying past romantic and sexual relationships outside of his primary marriage.

Parental content guides indicate "Some language throughout". When characters encounter towering creatures, they are "quick to utter a crudity in their terror". Specific examples of strong language are not explicitly detailed in summaries but general usage is noted.

Parental reviews explicitly state "Spiritual Content: Minimal religious or spiritual content". While the series involves giant monsters and a 'Hollow Earth' concept, these are presented within a science fiction framework rather than an occult or magical one. A boy mentions thinking the "government burned a hole through the Earth all the way to hell," but this is a casual remark and not indicative of occult themes.

Parental content guides specify that "Characters regularly drink alcohol". Specific scenes include characters drinking in social or stressful situations, though explicit intoxication or addiction are not central plot points.

Scenes include giant beetle-like insects swarming and attacking people, with a woman pulled into darkness and presumably eaten alive. Characters discover "gross dead bodies preserved by and covered in a slimy organic substance" reminiscent of a horror film. The series also features tense moments of suspense as characters navigate dangerous environments and evade Titans, such as Cate's PTSD from G-Day.

Characters like Cate, Kentaro, and May deliberately defy Monarch protocols and agents, such as breaking Lee Shaw out of house arrest to uncover secrets about Hiroshi. Shaw himself is held under house arrest after multiple escape attempts, demonstrating rebellion against Monarch's control. The 2015 version of Monarch is also depicted as somewhat corrupt and bureaucratic, leading to characters questioning and acting against its directives.

Parental content guides state "Spiritual Content: Minimal religious or spiritual content". There are no depictions of characters mocking Christian beliefs, sacrilegious acts, or overt criticism of Christianity within the available information about the series. The primary focus remains on the scientific and action-adventure aspects of the Monsterverse.