Its when you dont add commas , periods etc..
example --- the kid went out and play with his friends and he also forgot to come home on time he got in trouble and he cant do anything.
there is many commas missing that is a run on.
Your answer would be, and will always be continued
hope this helps!
plot is complicated by supernatural beings or events and may involve a long and dangerous journey through foreign lands and the setting is in scope ususally involving more than one nation.