Big Ideas

Every day during their summer vacation, Phineas Flynn and Ferb Fletcher have big ideas and go through with them. Some of the plans are used as a way of helping someone in need, while others are just to help them have the best possible summer ever, as described in "Rollercoaster".

Background Information
The plans the boys come up with can be described as "nearly impossible plans" due to the short amount of time they are accomplished in, or because they involve science and technology currently outside of what is seen in the real world. Examples include teleportation and building a giant human-operated bowling ball in their sleep. However, Phineas and Ferb do not view them as nearly impossible, just a great idea. When Isabella asked Phineas if building a time machine was "kind of impossible", he shrugged it off with the response, "some might say". ("It's About Time!")

"Big Ideas" also references the first advertising campaign that the Disney Channel ran prior to the launch of the series in February 2008. For Phineas, it was "he thinks big". For Ferb, it was "he thinks how".