Skip to content

Featured Popular Top Rated Upcoming Now Playing

Featured Popular Top Rated Airing Today On The Air

Action Adventure Animation Comedy Crime Documentary Drama Family Fantasy History Horror Music Mystery Romance Science Fiction TV Movie Thriller War

Search movies and TV series

Search movies and TV series

Featured Popular Top Rated Upcoming Now Playing

Featured Popular Top Rated Airing Today On The Air

Action Adventure Animation Comedy Crime Documentary Drama Family Fantasy History Horror Music Mystery Romance Science Fiction TV Movie Thriller War

Every movie and series, one place to find it.

Search movies and TV series

Loading content…

Discover where to watch movies and TV series online. Browse trending titles, streaming availability, ratings, trailers, cast and full episode guides — all in one place.

Movies

Featured
Popular
Top Rated
Upcoming
Now Playing

TV Series

Featured
Popular
Top Rated
Airing Today
On The Air

Discover

Trending
Free to Watch
Browse Genres
Search

© 2026 Watch Free Online Movies. All rights reserved.

This product uses the TMDB API but is not endorsed or certified by TMDB. Watch Free Online Movies does not host or stream any media — it links to where titles are legally available.

Loading title details…

Swarm: Nature's Incredible Invasions poster

Swarm: Nature's Incredible Invasions(2009)

20091 season2 episodes1h

73%User score 73 percent

User Score

3 votes

Overview

Documentary series revealing the awe-inspiring world of animal swarms.

Seasons(1)

Miniseries2009 · 2 episodesJanuary 4, 2009

Season list for Swarm: Nature's Incredible Invasions

Top Billed Cast

David Tennant
Narrator (voice)

Media

Where to Watch

No streaming options are listed for US right now. Availability changes often — check back soon.

More Like This

Recommendations based on this series

81%User score 81 percent

Earth at Night in Colour

2020 · Documentary

74%User score 74 percent

Natural World

1983 · Documentary

79%User score 79 percent

Nature

1982 · Documentary · Family

76%User score 76 percent

Welcome to Earth

2021 · Documentary

77%User score 77 percent

Great Migrations

2010 · Documentary

86%User score 86 percent

Planet Earth

2006 · Documentary

85%User score 85 percent

Seven Worlds, One Planet

2019 · Documentary · Family

79%User score 79 percent

Animal

2021 · Documentary

80%User score 80 percent

Tiny World

2020 · Documentary

86%User score 86 percent

Planet Earth III

2023 · Documentary · Family

86%User score 86 percent

Planet Earth II

2016 · Documentary · Family

82%User score 82 percent

The Life of Birds

1998 · Documentary

74%User score 74 percent

A Real Bug's Life

2024 · Documentary

84%User score 84 percent

Life

2009 · Documentary

70%User score 70 percent

NOVA

1974 · Documentary

76%User score 76 percent

The Crocodile Hunter

1997 · Documentary · Action & Adventure

85%User score 85 percent

Our Planet

2019 · Documentary · Family

75%User score 75 percent

Secrets of the Penguins

2025 · Documentary

84%User score 84 percent

Nature's Great Events

2009 · Documentary

76%User score 76 percent

Our Great National Parks

2022 · Documentary

Swarm: Nature's Incredible Invasions (2009) | Watch Free Online Movies

Facts

Status: Ended
Type: Miniseries
Original name: Swarm: Nature's Incredible Invasions
First aired: January 4, 2009
Last aired: January 11, 2009
Network: BBC One
Original language: English

Official site IMDb

Keywords

nature documentary