Learn Hardcore Norwegian: Det er liksom planen.

Liksom adds a soft, slightly hesitant, or casual tone. It often works a bit like kind of, sort of, basically, or like in English, depending on context.

So Det er liksom planen is not as firm as Det er planen. It can suggest:

that’s kind of the plan
that’s basically the plan
that’s, like, the plan

It often makes the statement sound less direct, less formal, or a little uncertain.

Why is it planen and not plan?

Planen is the definite form of plan, meaning the plan.

en plan = a plan
planen = the plan

Norwegian usually adds the definite article to the end of the noun instead of using a separate word like English the.

So:

Det er en plan = That is a plan
Det er planen = That is the plan

In your sentence, planen is definite because it refers to a specific plan already understood in the situation.

Why does the sentence start with det?